Environmental Monitoring Instruments
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| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic Laboratory Water Quality Analyzer |
| Model | IT1030 |
| Price Range | USD 1,400 – 4,200 |
| Instrument Type | Benchtop Laboratory Water Quality Analyzer |
| Measurable Parameters | 52 EPA- and ISO-aligned parameters |
| Display | 5.6-inch color capacitive touchscreen |
| Data Storage | ≥5,000 test records |
| Calibration | 9-point non-linear calibration support |
| Optical System | Narrow-band interference filters with cold LED light source (rated lifetime: 100,000 hours) |
| Processor | ARM9 core with 512 MB internal memory |
| Connectivity | USB 2.0 host/device, RS-232 serial port |
| Printer | Integrated thermal printer |
| Compliance | Methods aligned with GB/T, HJ, ISO 7027, ISO 6060, ISO 8467, ISO 15704, ASTM D1253, ASTM D3370, USP <643>, and EPA Method 410.4, 365.2, 354.1, 365.3, etc. |
| Software Features | User-defined curve building with segmented K-coefficients, 195 expandable method curves + 5 factory preloaded curves |
| Reagent Compatibility | Optimized for Lab-YY certified pre-filled reagent vials |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | ITS 2000Z |
| Instrument Category | Laboratory Water Quality Analyzer |
| Detection Parameters | Hexavalent Chromium (Cr⁶⁺), Total Chromium (Crₜₒₜ), Copper (Cu), Zinc (Zn), Nickel (Ni), Iron (Fe), Lead (Pb) |
| Wavelength Accuracy | ±0.5 nm |
| Display | 5.6-inch Color Touchscreen |
| Data Interfaces | USB, RS-232 |
| Light Source | Cold LED with Narrow-band Interference Filter (Lifespan ≥ 100,000 h) |
| Processor | ARM9 Core |
| Internal Memory | 512 MB |
| Data Storage Capacity | ≥ 5,000 records |
| Pre-installed Calibration Curves | 5 factory curves + 195 user-expandable curves |
| Custom Curve Function | Yes, with adjustable segmental coefficient K |
| Compatible Reagents | Lab-YY Pre-formulated Reagent Kits |
| Analytical Methods | Diphenylcarbazide (Cr⁶⁺/Crₜₒₜ), Diethyldithiocarbamate (Cu), Zinc Reagent (Zn), Dimethylglyoxime (Ni), o-Phenanthroline (Fe), Xylenol Orange (Pb) |
| Measurement Ranges | Cr⁶⁺/Crₜₒₜ: 0–1 mg/L |
| Cu | 0–3.00 mg/L (macro) / 5–200 µg/L (micro) |
| Zn | 0.4–5 mg/L |
| Ni | 0.05–3.00 mg/L |
| Fe | 0.05–3.00 mg/L (macro) / 5–200 µg/L (micro) |
| Pb | 0–4.00 mg/L |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic Lab-Based Water Quality Analyzer |
| Model | ITS2000Z |
| Price Range | USD 1,400 – 4,200 (FOB Shanghai) |
| Instrument Type | Benchtop Spectrophotometric Heavy Metal Analyzer |
| Detection Parameters | Hexavalent Chromium (Cr⁶⁺), Total Chromium (Crₜₒₜ), Copper (Cu²⁺), Zinc (Zn²⁺), Nickel (Ni²⁺), Iron (Fe²⁺/Fe³⁺), Lead (Pb²⁺) |
| Wavelength Accuracy | ±0.5 nm |
| Display | 5.6-inch Color TFT Touchscreen GUI |
| Data Storage | ≥5,000 measurement records |
| Preloaded Calibration Curves | 5 factory curves + 195 user-expandable curves |
| Light Source | Long-life Cold LED (≥100,000 h) with Narrow-band Interference Filters |
| Optical System | Fixed-wavelength Photometric Platform (7 discrete wavelengths optimized per analyte) |
| Microprocessor | ARM9 Core with 512 MB Flash Memory |
| Connectivity | USB 2.0 Host/Device, RS-232 Serial Port |
| Integrated Printer | Thermal Dot-Matrix Printer (58 mm roll) |
| Reagent Compatibility | Compatible with Yoke Lab-YY Pre-formulated Reagent Kits (ASTM D1688, ISO 11047, EPA 7196A/7199/7000B compliant) |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic (China-Made) |
| Model | ITS2001 |
| Price Range | USD 280–1,400 (FOB Shanghai) |
| Instrument Type | Benchtop Laboratory Water Quality Analyzer |
| Measurable Parameters | 65 parameters (excluding Total Nitrogen), selectable one at a time |
| Wavelength Accuracy | ±0.5 nm |
| Display | 5.6-inch color capacitive touchscreen |
| Data Interfaces | USB 2.0, RS-232 serial port |
| Built-in Printer | Thermal printer with direct data/print queue support |
| Light Source | Cold LED source with narrow-band interference filters |
| Processor | ARM9 core with 512 MB onboard memory |
| Calibration Curves | 5 factory-loaded standard curves + 195 user-expandable curves |
| Data Storage Capacity | ≥5,000 measurement records |
| Custom Curve Support | Yes, with adjustable segmental calibration coefficients (K-factors) |
| Reagent Compatibility | Lab-YY pre-formulated reagent kits (ASTM D1253, ISO 6060, HJ 399–2007, HJ 535–2009 compliant) |
| Measurement Principles | UV-Vis spectrophotometry (single-beam, fixed-wavelength or dual-wavelength modes), turbidimetry, nephelometry, and colorimetry per parameter-specific method |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Laboratory Water Quality Analyzer |
| Model | ITS2002 |
| Detection Parameters | COD, Ammonia-N, Total Phosphorus, Total Nitrogen (any two simultaneously) |
| Wavelength Accuracy | ±0.5 nm |
| Display | 5.6-inch Color Touchscreen GUI |
| Data Storage | ≥5000 records (5 factory curves + 195 user-expandable curves) |
| Light Source | Cold LED with Narrow-Band Interference Filter, Lifetime ≥100,000 hours |
| Processor | ARM9 core |
| Internal Memory | 512 MB |
| Connectivity | USB 2.0, RS-232 serial port |
| Printer | Built-in thermal printer |
| Measurement Method Compliance | GB/T 11914–1989 (COD), HJ 535–2009 (NH₃-N), GB/T 11893–1989 (TP), HJ 636–2012 (TN) |
| Reagent Compatibility | Lab-YY pre-mixed reagent kits |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic Lab-Based Water Quality Analyzer |
| Model | ITS2003 |
| Price Range | USD 1,400 – 4,200 (FOB Shanghai) |
| Instrument Type | Benchtop Laboratory Water Quality Analyzer |
| Measurable Parameters | COD, Ammonia-N, Total Phosphorus, Total Nitrogen (any three simultaneously configurable) |
| Wavelength Accuracy | ±0.5 nm |
| Display | 5.6-inch TFT Color Touchscreen GUI |
| Data Storage | ≥5,000 test records |
| Preloaded Calibration Curves | 5 factory curves + 195 expandable user-defined curves |
| Light Source | Cold LED with Narrow-Band Interference Filters (Lifespan: ≥100,000 hours) |
| Processor | ARM9 core |
| Internal Memory | 512 MB |
| Connectivity | USB 2.0 port + RS-232 serial interface |
| Integrated Printer | Thermal printer (direct print of real-time & stored data) |
| Reagent Compatibility | Lab-YY pre-formulated reagent kits |
| Regulatory Alignment | Compliant with Chinese national standards HJ/T 399–2007 (COD), HJ 535–2009 (Ammonia-N), GB 11893–1989 (Total Phosphorus), HJ 636–2012 (Total Nitrogen) |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | ITS2004 |
| Price Range | USD 1,400–4,200 (FOB Shanghai) |
| Instrument Type | Benchtop Laboratory Water Quality Analyzer |
| Measurable Parameters | COD, Ammonia-Nitrogen (NH₃-N), Total Phosphorus (TP), Total Nitrogen (TN) |
| Wavelength Accuracy | ±0.5 nm |
| Display | 5.6-inch Color TFT Touchscreen |
| Data Storage | ≥5,000 records (5 factory curves + 195 user-expandable calibration curves) |
| Data Interfaces | USB 2.0, RS-232 |
| Light Source | Cold LED with Narrow-Band Interference Filters (Lifespan: ≥100,000 h) |
| Processor | ARM9 Core |
| Internal Memory | 512 MB Flash |
| Calibration Flexibility | User-Defined Multi-Segment Calibration Curves (Adjustable K-coefficients) |
| Reagent Compatibility | Pre-mixed Lab-YY Certified Reagent Kits |
| Regulatory Alignment | ASTM D1253, ISO 6060 (COD), ISO 7150-1 (NH₃-N), ISO 6878 (TP), ISO 11905-1 (TN), HJ/T 399–2007, HJ 535–2009, HJ 671–2013, HJ 636–2012 |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic (China-Made) |
| Model | ITS2004 |
| Price Range | USD 1,400–4,200 (est.) |
| Instrument Type | Benchtop Laboratory Water Quality Analyzer |
| Measurable Parameters | COD, Ammonia-N, Total Phosphorus, Total Nitrogen |
| Wavelength Accuracy | ±0.5 nm |
| Display | 5.6-inch Color Touchscreen GUI |
| Data Storage | ≥5,000 records |
| Preloaded Calibration Curves | 5 factory curves + 195 user-expandable curves |
| Light Source | Cold LED with Narrow-Band Interference Filters |
| Light Source Lifetime | ≥100,000 hours |
| Processor | ARM9 core |
| Internal Memory | 512 MB |
| Data Interfaces | USB 2.0, RS-232 |
| Measurement Method Compliance | GB/T 11914–1989 (COD), HJ 535–2009 (NH₃-N), GB/T 11893–1989 (TP), HJ 636–2012 (TN) |
| Reagent Compatibility | Lab-YY Pre-formulated Digestion & Detection Kits |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Laboratory Benchtop Meter |
| Measurement Principle | Polarographic Electrochemical Probe |
| Range | (0–20.00) mg/L (ppm), (0–200.0)% |
| Accuracy | Meter: ±0.10 mg/L |
| System (with electrode) | ±0.40 mg/L |
| Resolution | 0.01 mg/L / 0.1% |
| Temperature Compensation | 0–45 °C (automatic) |
| Salinity Compensation | 0–45 ppt (automatic) |
| Barometric Pressure Compensation | 80–105 kPa (automatic) |
| Response Time | ≤30 s (90% response at 25 °C) |
| Residual Current | ≤0.1 mg/L |
| Calibration Modes | Air-saturated water, Water-saturated air |
| Data Storage | 600 sets (ID, DO value, temperature, date, time) |
| Interface | RS232 |
| Operating Environment | 10–30 °C, ≤80% RH |
| IP Rating | IP54 |
| Power Supply | DC 9 V / 300 mA |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | L-201 |
| Instrument Type | Portable |
| Measurement Principle | Potentiometric (Glass Electrode) |
| pH Range | −2.00 to 20.00 pH |
| pH Resolution | 0.1 / 0.01 pH |
| pH Accuracy | ±0.01 pH |
| mV Range | ±1999.9 mV |
| mV Resolution | 0.1 mV |
| mV Accuracy | ±1 mV |
| pH Repeatability | ≤±0.01 pH |
| mV Repeatability | ≤±1 mV |
| Temperature Compensation | Automatic & Manual |
| Calibration Options | 1–3 point, with auto-buffer recognition |
| Built-in Buffers | 15 standard buffers across 3 groups |
| Display | 7-inch color TFT capacitive touchscreen |
| Language Support | English & Chinese |
| User Interface | Graphical, glove-compatible, UV-resistant, scratch-resistant, auto-dimming |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | L-231 |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence-based Dissolved Oxygen (DO), Potentiometric pH, Conductivity (4-electrode or 2-electrode, selectable) |
| DO Range | 0–99.00 mg/L |
| DO Accuracy | ±0.2 mg/L |
| DO Detection Limit | 0.01 mg/L |
| pH Accuracy | ±0.01 pH |
| pH Range | −2.00 to 20.00 pH |
| pH Resolution | 0.001 / 0.01 / 0.1 pH (user-selectable) |
| mV Resolution | 0.01 / 0.1 / 1 mV (user-selectable) |
| Conductivity Accuracy | ±0.5% FS |
| Conductivity Detection Limit | 0.01 µS/cm |
| Conductivity Calibration | Built-in 8 standard solutions (ISO/ASTM-compliant), 1-point user calibration supported |
| Repeatability | DO ≤ ±0.1 mg/L |
| Temperature Compensation | Automatic (NTC 30kΩ) and manual modes |
| Data Management | Onboard statistical analysis (min/max/avg/stdev), audit-trail-capable storage, GLP/GMP-compliant data logging with timestamp, user ID, and electrode status metadata |
| Enclosure Rating | IP54 |
| Display | 7-inch capacitive color touchscreen with glove-compatible operation, UV-resistant, scratch-resistant surface, adjustable brightness and auto-dimming |
| Power | Rechargeable Li-ion battery (≥16 h continuous use), AC adapter included |
| Compliance | Meets ISO 5814 (DO by optical method), ASTM D888, USP <643>, and relevant Chinese national standards (e.g., HJ 506-2009 for DO |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | L-241 |
| Instrument Type | Portable |
| Measurement Principles | Potentiometric (pH/mV), Electrochemical Polarographic (Dissolved Oxygen), Conductometric (Conductivity) |
| pH Range | −2.00 to 20.00 pH |
| pH Accuracy | ±0.01 pH |
| pH Repeatability | ≤±0.01 pH |
| Dissolved Oxygen Range | 0.00–99.00 mg/L |
| Dissolved Oxygen Accuracy | ±0.2 mg/L |
| Dissolved Oxygen Detection Limit | 0.01 mg/L |
| Conductivity Range | 0.00 µS/cm–200.0 mS/cm |
| Conductivity Accuracy | ±0.5% FS |
| Conductivity Detection Limit | 0.01 µS/cm |
| Temperature Range | −5.0 to 55.0 °C |
| Temperature Accuracy | ±0.2 °C |
| IP Rating | IP54 |
| Display | 7-inch color TFT capacitive touchscreen |
| Data Management | Onboard statistical analysis, timestamped storage, export via USB, GLP-compliant audit trail support |
| Calibration | Auto-buffer recognition (15 built-in buffers across 3 groups), 1–3-point user-defined pH calibration with slope & status display, automatic DO salinity & atmospheric pressure compensation, ATC/MTC |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | L-301 |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence-based DO detection & Potentiometric pH measurement |
| pH Range | -2.00 to 20.00 |
| pH Resolution | 0.001 / 0.01 / 0.1 pH (user-selectable) |
| mV Resolution | 0.1 / 0.1 / 1 mV (user-selectable) |
| DO Range | 0.00–99.00 mg/L |
| pH Accuracy | ±0.02 pH |
| mV Accuracy | ±1 mV |
| pH Repeatability | ≤±0.01 pH |
| mV Repeatability | ≤±1 mV |
| Temperature Compensation | Automatic and manual modes |
| Calibration | Up to 3-point pH calibration with auto-buffer recognition |
| Display | 7-inch full-color capacitive touchscreen |
| Language Support | English and Chinese |
| Environmental Protection | UV-resistant, scratch-resistant, glove-compatible surface |
| Power | Rechargeable Li-ion battery (operating time ≥12 h typical) |
| Compliance | Designed for field and lab use per ISO 5667-3, ASTM D3693, and USP <781> water quality testing protocols |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | L-341 |
| Instrument Type | Portable |
| Measurement Principles | Potentiometric (pH/mV), Galvanic Cell (Dissolved Oxygen), Conductivity Bridge (Conductivity/TDS/Salinity/Resistivity) |
| pH Range | 0.00–14.00 |
| pH Accuracy | ±0.01 |
| pH Repeatability | ≤±0.01 |
| Conductivity Range | 0.000 μS/cm – 2000 mS/cm |
| Conductivity Accuracy | ±0.5% FS |
| Conductivity Repeatability | ≤±0.2% |
| Conductivity Detection Limit | 0.01 μS/cm |
| Dissolved Oxygen Range | 0.00–50.00 mg/L |
| Dissolved Oxygen Accuracy | ±0.2 mg/L |
| Dissolved Oxygen Repeatability | ≤±0.1 mg/L |
| Dissolved Oxygen Detection Limit | 0.01 mg/L |
| Temperature Compensation | Automatic & Manual |
| Display | 7-inch TFT color touchscreen |
| IP Rating | IP54 |
| Compliance | Supports GMP data integrity requirements (audit trail, user access control, data export, firmware update log) |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | L-401 |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence Quenching |
| Range | 0.00–99.00 mg/L |
| Accuracy | ±0.2 mg/L |
| Repeatability | ≤±0.1 mg/L |
| Detection Limit | 0.01 mg/L |
| Display | 7-inch capacitive touchscreen |
| Resolution | 0.01/0.1 mg/L |
| Temperature Compensation | Automatic and manual modes supported |
| Language Options | English and Chinese UI |
| Units | mg/L and % saturation selectable |
| Operating Temperature | 0–50 °C (standard ambient range for field-portable DO meters) |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | L-403 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principles | Potentiometric (pH/mV), Conductometric (Conductivity/TDS/Salinity/Resistivity), Polarographic (Dissolved Oxygen) |
| pH Range | 0.00–20.00 pH |
| pH Accuracy | ±0.01 pH |
| pH Resolution | 0.001 / 0.01 / 0.1 pH (selectable) |
| mV Range | ±2000.0 mV |
| mV Accuracy | ±0.2 mV |
| mV Resolution | 0.01 / 0.1 / 1 mV (selectable) |
| Conductivity Range | 0.01 μS/cm – 100 mS/cm |
| Conductivity Accuracy | ±1% FS |
| Conductivity Detection Limit | 0.01 μS/cm |
| Dissolved Oxygen Range | 0.00–20.00 mg/L |
| DO Accuracy | ±0.1 mg/L |
| DO Detection Limit | 0.01 mg/L |
| DO Saturation Range | 0.0–200.0% |
| Temperature Range | 0–50 °C |
| Temp. Accuracy | ±0.2 °C |
| Repeatability | ≤±0.5% |
| Data Storage | Up to 2000 datasets with timestamp, operator ID, and metadata |
| Calibration Options | Auto-buffer recognition (15 built-in standards), 1–3 point pH calibration, single-point conductivity calibration (8 preloaded standard solutions), DO zero & span calibration |
| Compliance | IP54-rated enclosure |
| Software Features | Statistical analysis (mean, SD, min/max), audit trail (GMP-compliant), firmware update via USB, auto-diagnostic reporting, power-fail recovery |
| Operating System | Dual-language (English/Chinese), adjustable screen brightness & time format, configurable temperature units (°C/°F) |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | L-501 (Fluorescence Method) |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence Quenching |
| Measurement Range | 0–99.00 mg/L |
| Accuracy | ±0.1 mg/L |
| Repeatability | ≤±0.05 mg/L |
| Detection Limit | 0.01 mg/L |
| Display | 7-inch Color Touchscreen |
| Parameters Displayed | DO Concentration (mg/L), Saturation (%), Temperature (°C/°F) |
| Temperature Compensation | Automatic & Manual |
| Electrode Status Monitoring | Intelligent Diagnostic Algorithm |
| Sensor Design | Solid-State Fluorescent Cap, No Electrolyte, No Polarization Required |
| Cap Replacement | Tool-Free, Quick-Swap Mechanism |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | L-503 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principles | pH (glass electrode), Conductivity (4-electrode AC conductivity), Dissolved Oxygen (fluorescence quenching), Temperature (Pt1000 RTD) |
| pH Range | 0.00–14.00 |
| pH Accuracy | ±0.01 pH |
| pH Repeatability | ≤±0.01 pH |
| Conductivity Range | 0.000 µS/cm–2000 mS/cm |
| Conductivity Accuracy | ±0.5% FS |
| Conductivity Detection Limit | 0.01 µS/cm |
| DO Range | 0.00–99.00 mg/L |
| DO Accuracy | ±0.2 mg/L |
| DO Repeatability | ≤±0.1 mg/L |
| DO Detection Limit | 0.01 mg/L |
| Temperature Range | –5.0 to 55.0 °C |
| Temperature Accuracy | ±0.2 °C |
| Display | 7-inch capacitive color touchscreen (1024×600) |
| IP Rating | IP54 |
| Data Storage | Internal memory for ≥2000 datasets with timestamp, operator ID, and audit trail metadata |
| Compliance | Supports GLP/GMP data integrity requirements including user-defined access levels, electronic signature readiness, and calibration history logging |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | L-701 |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence-based Dissolved Oxygen (DO) Detection |
| DO Range | 0–99.00 mg/L |
| DO Accuracy | ±0.5% of reading (ion concentration), ±0.01 pH |
| Repeatability | ≤±0.2% |
| Detection Limit | 0.01 mg/L |
| pH/pX Range | –2.00 to 20.00 |
| pH Resolution | 0.01 pH |
| mV Range | –1999.9 to +1999.9 mV |
| mV Resolution | 0.1 mV |
| Temperature Compensation | Automatic & Manual |
| Display | 7-inch color TFT capacitive touchscreen |
| Operating System | Built-in bilingual (English/Chinese) firmware with adjustable brightness, time stamping, and °C/°F switching |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | M901 |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence Quenching (DO), Potentiometric (pH) |
| DO Range | 0–99.00 mg/L |
| pH Accuracy | ±0.002 |
| mV Accuracy | ±0.1 mV |
| pH Repeatability | ≤±0.001 |
| mV Repeatability | ≤±0.1 mV |
| pH Range | −2.00 to 20.00 |
| pH Resolution | 0.001 |
| mV Resolution | 0.1 mV |
| Display | 7-inch color capacitive touchscreen |
| IP Rating | IP54 |
| Temperature Compensation | Automatic/manual with integrated high-stability temperature electrode |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | M902 |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence-based Dissolved Oxygen (Note: *Correction required — device is a conductivity meter |
| Conductivity Range | 0.000 μS/cm to 2000 mS/cm |
| Accuracy | ±0.5% FS (Conductivity) |
| Repeatability | ≤ ±0.2% |
| Detection Limit | 0.01 μS/cm |
| Display | 7-inch color capacitive touchscreen |
| Temperature Compensation | Automatic/manual with integrated high-stability temperature electrode |
| IP Rating | IP54 |
| Data Compliance | GLP-compliant audit trail, calibration history logging, method recall, USB/printer/computer connectivity |
| Calibration | Multi-point (1–5 points), auto-standard recognition, calibration expiry alert |
| Sample Handling | Built-in magnetic stirrer, endpoint stability criteria configurable |
| Environmental Protection | Dust and splash resistant (IP54) |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | M907 |
| Instrument Type | Portable |
| Measurement Principle | Fluorescence Quenching |
| DO Range | 0–99.00 mg/L |
| DO Detection Limit | 0.01 mg/L |
| DO Accuracy | ±0.5% of reading (ion concentration) |
| Repeatability | ≤±0.2% |
| Display | 7-inch color capacitive touchscreen |
| pH/pX Range | −2.00 to 20.00 |
| pH/pX Resolution | 0.01 (default), selectable to 0.001 or 0.1 |
| mV Range | −1999.9 to +1999.9 mV |
| mV Resolution | 0.1 mV (selectable to 0.01 or 1) |
| Temperature Compensation | Automatic/manual with integrated high-stability temperature electrode |
| Data Management | GLP-compliant storage, audit trail, method recall, USB/printer/PC connectivity |
| Enclosure Rating | IP54 |
| Ion Modes | Direct concentration, standard addition, sample addition, Gran plot |
| Supported Ions | H⁺, Ag⁺, Na⁺, K⁺, NH₄⁺, Cl⁻, F⁻, and user-definable |
| Units | mg/L, g/L, mol/L, pX |
| Calibration Tracking | Auto-log with expiry alert |
| Stirring | Integrated magnetic stirrer |
| Endpoint Detection | Configurable stability criteria |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Regional Category | Domestic (China) |
| Model | MIS1000 |
| Price Range | USD 2,800 – 11,200 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Measured Parameters | Dissolved Oxygen (DO), pH, Conductivity, TDS, Salinity, Resistivity, ORP, Temperature, plus optional photometric parameters including COD, NH₃-N, TP, TN, Turbidity, Cl₂, Cr⁶⁺, Fe, Cu, Pb, Cd, Ni, Mn, Zn, As, F⁻, CN⁻, SO₄²⁻, PO₄³⁻, NO₂⁻, NO₃⁻, Formaldehyde, Phenol, etc. |
| Optical System | Narrow-band Interference Filter + High-Precision Optical Filtering (380–800 nm) |
| Display | 7.0-inch Color Touchscreen or 5.6-inch Omron Keypad-integrated LCD |
| Data Storage | ≥5,000 measurement records + 200 built-in calibration curves |
| Power Supply | Dual-mode — Rechargeable Li-ion battery (3.7 V / 1800 mAh) + AC adapter (220 V ±10 %, 50 Hz) |
| Communication | USB 2.0, Bluetooth 4.0 |
| Enclosure Rating | IP54 |
| Dimensions | 160 × 190 × 70 mm |
| Weight | 0.88 kg (instrument only) |
| Operating Environment | 5–40 °C, ≤85 % RH (non-condensing) |
| Photometric Accuracy | ±8 % FS |
| Repeatability | ±5 % |
| Optical Stability | ≤0.001 A / 10 min |
| Light Source Lifetime | 100,000 h |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | MIT-1000 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Measurable Parameters | COD, Ammonia Nitrogen, Total Phosphorus, Total Nitrogen, Turbidity, Color, Suspended Solids, Hexavalent Chromium, Lead, Cadmium, Copper, Zinc, Iron, Nickel, Manganese, Arsenic, Aluminum, Cyanide, Nitrite, Nitrate, Sulfate, Phosphate, Chloride, Fluoride, Hardness, Residual Chlorine, Total Chlorine, Chlorine Dioxide, Formaldehyde (in air/water/textiles), Sulfide, Volatile Phenols |
| Detection Methodology | Multiple Standardized Spectrophotometric Methods (e.g., Dichromate Digestion for COD, Nessler’s Reagent for NH₃-N, Molybdate Blue for TP, etc.) |
| Display | Dual Touchscreen (7.6″ + 5.6″), Chinese UI |
| Power Supply | Dual-mode — Rechargeable Li-ion Battery (≥12 h runtime) + AC Adapter |
| Data Storage | ≥5000 test records, 200 user-defined calibration curves, built-in standard curves |
| Optical System | Cold LED Light Source with Narrow-band Interference Filters, Lifetime ≥100,000 h |
| Processor | ARM9 Core, 512 MB Internal Memory |
| Connectivity | Integrated Thermal Printer (timestamped reports with parameter labels) |
| Reagent Compatibility | Pre-filled Lab-YY Vial Kits (shelf-stable, no manual preparation required) |
| Compliance Support | Designed to align with ISO 7027 (turbidity), ISO 6060 (COD), ISO 7150-1 (NH₃-N), ISO 8242 (TP), EPA 365.4 (phosphorus), ASTM D1253 (residual chlorine), and relevant Chinese national standards (e.g., HJ/T 399–2007, HJ 535–2009, HJ 636–2012) |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Manufacturer |
| Model | YKM-BAD |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric Method (Nesslerization or Salicylate-based) |
| Measurement Range | 0.02–30 mg/L NH₃-N |
| Accuracy | ≤ ±5% |
| Detection Limit | 0.02 mg/L |
| Measurement Time | 10–15 minutes |
| Batch Capacity | 20 samples |
| Optical Stability | ≤ 0.001 A/10 min |
| Light Source | Cold LED with Narrow-band Interference Filter, Lifetime ≥ 100,000 hours |
| Data Storage | 5,000 measurement records |
| Calibration Curves | 200 total (5 factory-default + 195 user-expandable) |
| Display | 4.3-inch TFT color touchscreen |
| Power Supply | Rechargeable Li-ion battery + USB-powered operation |
| Interface Language | English/Chinese switchable |
| Communication | USB data transfer |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Product Category | Domestic (China-made) |
| Model | YK-100 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | DPD Colorimetric Spectrophotometry |
| Measured Parameter | Free Residual Chlorine |
| Measurement Range | 0.01–3.00 mg/L |
| Accuracy | ≤5% |
| Repeatability | ≤±3% |
| Limit of Detection (LOD) | 0.05 mg/L |
| Display | 4.3″ TFT LCD (1024×600) |
| Optical System | Single-beam with Narrow-band Interference Filter |
| Light Source | Imported Long-life Cold LED (Germany-sourced) |
| Photodetector | Imported Photodiode |
| Optical Stability | ≤0.002 A/10 min |
| Data Storage | Internal Memory (2000 records) + USB Drive Support |
| Calibration Curves | 200 Preloaded Curves |
| Sample Cells | Cuvette (high-precision) and Test Tube (routine use) |
| Waste Disposal | Integrated Auto-drain System |
| Data Interfaces | RS-232C, USB Device, USB Host |
| Optional Wireless | Bluetooth Module (add-on) |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic Instrument |
| Model | YK-806A |
| Price Range | USD 1,400–7,200 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Pressure-Difference Method |
| BOD Range | 0–4000 mg/L |
| Accuracy | Compliant with Standard Glucose-Glutamic Acid Reference Solution Test (BOD₅ = 180–230 mg/L per ISO 5815-1:2019 & ASTM D5210-19) |
| Sample Capacity | 6 simultaneous vessels |
| Data Storage Duration | 10-year internal archival for BOD₅ results |
| Connectivity | Wireless data transmission (IEEE 802.11 b/g/n), optional thermal printer interface |
| Compliance | Designed to support GLP/GMP-aligned workflows and audit-ready data integrity requirements |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | YKC-D1 |
| Pricing | Available Upon Request |
| Measurement Method | Alkaline Potassium Persulfate Digestion + UV Spectrophotometry |
| Measurement Range | 0–80 mg/L |
| Accuracy | ≤8% RSD |
| Display | 5.6-inch Color Touchscreen GUI |
| Data Storage | ≥5,000 records (5 factory curves + 195 user-expandable calibration curves) |
| Light Source | Cold LED with Narrow-band Interference Filters (Lifespan: ≥100,000 hours) |
| Processor | ARM9 Core |
| Internal Memory | 512 MB |
| Connectivity | USB 2.0, RS-232 Serial Port |
| Printer | Integrated Thermal Printer |
| Custom Curve Support | Yes (Segmented K-coefficient adjustment) |
| Compatible Reagents | Lab-YY Pre-formulated Digestion & Detection Kits |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Region of Origin | Domestic (China) |
| Model | YKC-D1 |
| Pricing | Upon Request |
| Measurement Method | Alkaline Potassium Persulfate Digestion + UV Spectrophotometry (Standard Method per HJ 636-2012) |
| Measurement Range | 0.05–100 mg/L (multi-range auto-segmentation) |
| Accuracy | ≤ ±8% RSD at mid-range (10–50 mg/L), validated against certified reference materials (CRMs) |
| Display | 5.6-inch capacitive color touchscreen (800 × 480 resolution) |
| Data Storage | ≥5,000 measurement records with timestamp, sample ID, operator ID, and calibration metadata |
| Preloaded Curves | 5 factory-calibrated curves + 195 user-expandable curves |
| Light Source | Cold LED with narrow-band interference filters (center wavelength: 220 nm & 275 nm |
| bandwidth | <5 nm FWHM) |
| Processor | ARM9 core @ 400 MHz with 512 MB NAND flash + 128 MB DDR2 RAM |
| Connectivity | USB 2.0 host/device port, RS-232 serial interface (DB9) |
| Integrated Thermal Printer | 58 mm width, auto-cutter, supports real-time and batch printout of raw absorbance, concentration, curve ID, digestion time, and QC flags |
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Model | YKG-B1 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Colorimetric Method (Standardized Spectrophotometric Absorption) |
| Measurement Range (Ammonia Nitrogen) | 0.01–100 mg/L |
| Accuracy | ≤5% RSD |
| Detection Limit | 0.01 mg/L (NH₃-N) |
| Measurement Time | 10–20 min per batch |
| Batch Capacity | 20 samples |
| Optical Stability | ≤0.001 A/10 min |
| Light Source | Long-life Imported Tungsten Halogen Lamp |
| Cuvette Compatibility | Standard 10-mm Pathlength Glass or Plastic Cuvettes (GB/T 5750 & HJ 535–2009 Compliant) |
| Data Storage | ≥5000 Records (with Timestamp, Parameter ID, Calibration Curve ID) |
| Preloaded Curves | 200 (5 Factory-default + 195 User-expandable) |
| Interface | 4.3″ TFT Color LCD (Chinese/English Switchable), USB Device/Host, RS-232C, Bluetooth (Optional) |
| Internal Memory | 512 MB NAND Flash |
| Repeatability | ≤±5% RSD |
| Chloride Interference Tolerance | ≤1000 mg/L Cl⁻ (NH₃-N & TP) |