Environmental Monitoring Instruments
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Showing 2191–2220 of 2384 results
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Nitrate Online Monitor |
| Instrument Type | Nitrate Ion (NO₃⁻) Analyzer |
| Measurement Principle | Ion-Selective Electrode (ISE) |
| Range Options | 0–10 ppm, 0–50 ppm, 0–100 ppm |
| Accuracy | ±5% of reading or full scale |
| Resolution | 0.001 ppm |
| Repeatability | ±5% of reading or full scale |
| Cycle Time | 2 minutes |
| Sample Flow Rate | 50–900 mL/min |
| Sample Inlet | 1/4″ compression fitting |
| Sample Temperature | 5–70 °C |
| Max Suspended Solids | 2% w/w, max particle size 1.27 mm (0.05″) |
| Sample Pressure | 0–50 psig |
| Waste Outlet | 3/4″ NPT male, atmospheric discharge |
| Alarm Outputs | User-programmable digital outputs |
| Analog Output | 4–20 mA, fully configurable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Dimensions (W×H×D) | 610 × 640 × 330 mm |
| Weight | ~36 kg (fully assembled) |
| Mounting | Wall-mounted with included hardware |
| Certifications | CE compliant |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Silicon Online Analyzer |
| Instrument Type | Silica (Orthosilicic Acid) Analyzer |
| Measurement Principle | Colorimetric Spectrophotometry (Molybdenum Blue Method) |
| Detection Wavelengths | 810 nm (low-range), 312 nm (high-range) |
| Range Options | 0–100 ppb, 0–500 ppb, 0–1000 ppb, 0–2 ppm, 0–5 ppm, 0–10 ppm |
| Accuracy | ±2% of reading or full scale |
| Resolution | 0.001 ppb (at lowest range) |
| Repeatability | ±2% of reading or full scale |
| Sample Flow Rate | 50–900 mL/min |
| Sample Interface | 1/4" compression fitting |
| Sample Temperature | 5–70 °C |
| Max Suspended Solids | 2% w/w, particle size ≤ 1.27 mm |
| Sample Pressure | 0–50 psig |
| Drain Outlet | 3/4" NPT male, atmospheric vent |
| Alarm Outputs | User-programmable digital relays |
| Analog Output | 4–20 mA, fully configurable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Mounting | Wall-mounted with integrated hardware |
| Dimensions (W×H×D) | 387 × 406 × 210 mm |
| Weight | ~36 kg (fully assembled) |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Sodium Ion Online Monitor |
| Price Range | USD 28,000 – 70,000 |
| Instrument Type | Online Water Quality Analyzer |
| Measurement Principle | Ion-Selective Electrode (ISE) with Single Standard Addition (SSA/SKA) Method |
| Range | High Range 0–200 ppm, Low Range 0–200 ppb |
| Accuracy | ±2% of reading or full scale |
| Resolution | 0.001 ppm/ppb |
| Repeatability | ±2% of reading or full scale |
| Sample Volume | 19 mL |
| Reagent Consumption | 2 mL per analysis |
| Sample Flow Rate | 50–900 mL/min |
| Sample Inlet | 1/4" compression fitting |
| Sample Temperature | 5–70 °C |
| Suspended Solids | ≤2% w/w, max particle size 0.05" (1.27 mm) |
| Sample Pressure | 0–50 psig |
| Waste Outlet | 3/4" NPT male, open drain |
| Alarm Outputs | User-programmable digital outputs |
| Analog Output | 4–20 mA, fully configurable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Mounting | Wall-mounted (hardware included) |
| Dimensions (W×H×D) | 387 × 406 × 210 mm |
| Weight | ~36 kg (fully assembled) |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Total Manganese Online Monitor |
| Instrument Type | Multi-Ion Analyzer |
| Measurement Principle | Colorimetric Analysis (Formaldehyde Oxime Complexation) |
| Range | Low: 0–25 ppb, High: 0–200 ppb |
| Accuracy | ±2% of reading or full scale |
| Resolution | 0.001 ppb |
| Repeatability | ±2% of reading or full scale |
| Cycle Time | 10 minutes |
| Sample Flow Rate | 50–900 mL/min |
| Sample Inlet | 1/4" compression fitting |
| Sample Temperature | 5–70 °C |
| Suspended Solids | ≤2% w/w, max particle size 1.27 mm |
| Sample Pressure | 0–50 psig |
| Effluent Outlet | 3/4" NPT male, atmospheric discharge |
| Alarm Outputs | User-programmable |
| Analog Output | 4–20 mA, programmable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Mounting | Wall-mounted with included hardware |
| Dimensions (W×H×D) | 387 mm × 406 mm × 210 mm |
| Weight | ~36 kg |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Zinc Ion Online Monitor |
| Pricing | Upon Request |
| Instrument Type | Multi-Ion Analyzer |
| Brand | Tianze Environmental |
|---|---|
| Origin | Shandong, China |
| Model | TZ-TS600 |
| Soil Volumetric Water Content (VWC) | 0–100% (±3% accuracy) |
| Soil Temperature | −30 to +70 °C (±0.3 °C, 0.01 °C resolution) |
| Soil Electrical Conductivity (EC) | 0–20,000 µS/cm (±3% up to 10,000 µS/cm |
| Compliance | ISO 9001, ISO 14001, ISO 45001 certified manufacturer |
| Brand | UGT |
|---|---|
| Origin | Germany |
| Model | FOG II |
| Measurement Principle | Pressure-based CO₂ evolution from HCl–CaCO₃ reaction |
| Display | Backlit LCD with membrane keypad |
| Power | 3×AA alkaline or rechargeable batteries |
| Measurement Range | 0–100% CaCO₃ (w/w) |
| Accuracy | ±0.5% CaCO₃ |
| Resolution | 0.1% CaCO₃ |
| Linearity (r²) | ≥0.999 |
| Temperature Compensation | Built-in sensor, 5–50 °C |
| Sample Mass | 0.5–5 g |
| Analysis Time | ~30 s per sample |
| Data Storage | Last 50 measurements |
| Ingress Protection | IP65 |
| Dimensions (L×W×H) | 200×94×39 mm |
| Weight | 350 g |
| Housing Material | UL 94 HB-rated ABS |
| Keypad | Polyester (PET) membrane |
| Display Coating | Scratch-resistant resin |
| Standard Kit | Analyzer unit, glass reaction vials, 100 mL sampling bottle, silicone tubing, precision micro-scale (0.01 g resolution), batteries, operation manual, and rugged carry case |
| Brand | Vientiane Environment |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | WX-CQX7 |
| Instrument Type | Ultrasonic All-in-One Weather Station |
| Display Option | Optional 1.0 × 0.5 m Outdoor Waterproof LED Display (Custom Sizes Available) |
| Housing | Integrated Metal Sheet Enclosure |
| IP Rating | IP65 (Standard) |
| Viewing Distance | ≥30 m (High-Brightness Dot-Matrix Font) |
| Sensor Height Reference | 100 cm mounting height for ultrasonic wind/temperature/humidity measurement |
| Real-Time Data Output | Yes |
| Brand | ULUPURE |
|---|---|
| Origin | Shaanxi, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | F2000-680/UP |
| Instrument Type | Laboratory-Based |
| Measurement Principle | Infrared Spectrophotometry (FTIR-based) |
| Measurement Range | 0–80,000 mg/L |
| Detection Limit | 0.02 mg/L |
| Accuracy | ±2% |
| Wavenumber Resolution | ±1 cm⁻¹ |
| Measurement Frequency | 7 samples/hour |
| Brand | -- |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | DC1500-U |
| Price | Upon Request |
| Brand | URG |
|---|---|
| Origin | USA |
| Model | URG-2000-30x242-3CSS |
| Number of Channels | 3 |
| Annular Spacing | 1 mm |
| Length | 242 mm |
| End Fittings | Dual #30 Threaded Ports |
| Flow Straightener | PTFE-Coated on One End |
| Housing Material | Stainless Steel |
| Etched Glass Surface | Yes |
| Protective End Caps | Included |
| Brand | Vaisala |
|---|---|
| Origin | Finland |
| Model | MHT410 |
| Measurement Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Gas Targets | Dissolved Hydrogen (H₂) and Water Activity (a<sub>w</sub>) in Transformer Oil |
| Oil Compatibility | Mineral oil, natural ester, synthetic ester, silicone oil |
| Enclosure Rating | IP66 with rain shield |
| Warranty | 5 years |
| Output Interfaces | 3× isolated 4–20 mA, RS-485 (Modbus RTU, DNP3, ASCII) |
| Compliance | EN 61326-1, CISPR 32/EN 55032 Class B, ISO 6270-1:2017 (C5-M), ISO 9227:2017 (salt spray), ISO 12994-6 (C5 corrosion protection) |
| H₂ Range | 0–5000 ppm<sub>v</sub> in oil |
| H₂ Accuracy | ±10% of reading or ±15 ppm<sub>v</sub> (whichever is greater) |
| H₂ Stability | ±3% of reading/year |
| H₂ Cross-sensitivity | <2% to CO₂, C₂H₂, C₂H₄, CO |
| a<sub>w</sub> Range | 0–1 (0–100 %RS) |
| a<sub>w</sub> Accuracy | ±0.02 (0–90 %RS), ±0.03 (90–100 %RS) |
| a<sub>w</sub> Response Time (90%) | 10 min at +20 °C in still oil |
| Sensor | HUMICAP® 180L2 |
| Power | 4 W typical, up to 12 W (galvanically isolated input) |
| Brand | VCAM |
|---|---|
| Model | ROS-1000 |
| Measurement Range (O₂) | 0–4000 ppm |
| Accuracy (O₂) | ±3% FS or ±5 ppm (whichever is greater) |
| Temperature Range | −50 to 700 °C |
| Temp Accuracy | ±0.5 °C |
| Temp Resolution | 0.1 °C |
| Sampling Interval | 0.05–60 s |
| Thermal Insulation | 8 min @ 300 °C / 10 min @ 260 °C |
| Vibration Sensing | Triaxial (X/Y/Z), ±2 g, ±5% accuracy, 1 mg resolution |
| Data Storage | 30 profiles × 20 minutes each |
| Carrier Width Adjustment | 141–310 mm |
| Dimensions (Probe) | 183 × 48 × 21 mm |
| Insulation Box | 242 × 90 × 34 mm |
| Power | USB-C, 5 V/1 A |
| Battery Life | 60 min |
| OS Compatibility | Windows 7 64-bit or later |
| Brand | BCNX |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Regional Category | Domestic (China) |
| Model | BCNX-AQ05 |
| Pricing | Available Upon Request |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | BCNX-AQ05 |
| Pricing | Upon Request |
| Brand | Senbe |
|---|---|
| Origin | USA |
| Manufacturer | Original Equipment Manufacturer (OEM) |
| Product Type | Imported Instrument |
| Model | 9565-X |
| Pricing | Available Upon Request |
| Brand | Active Spectrum |
|---|---|
| Origin | USA |
| Model | WatchDog 3000 |
| Communication | Cellular + Bluetooth |
| Power | Integrated Solar Charging System |
| Enclosure Rating | NEMA-4 / IP66 |
| Data Logging | Built-in Non-Volatile Memory |
| External Sensor Ports | Up to 2 |
| Compliance | FCC Part 15, IC RSS-210, RoHS |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Dr-M1102 |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical (Ion-Selective Electrode) |
| Range | 0–100 mg/L NH₃–N |
| Accuracy | ±10% FS |
| Detection Limit | 0 mg/L (defined by electrode sensitivity and signal-to-noise ratio) |
| Measurement Time | ≤60 s per parameter |
| Simultaneous Channels | 6 independent electrode ports |
| Display | 8-inch HD color capacitive touchscreen |
| Data Storage | 1,000,000 measurement records with timestamp, location (optional GPS), and electrode ID |
| Power Supply | Rechargeable Li-ion battery (≥12 h continuous operation) |
| IP Rating | IP68 for electrodes |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Connectivity | USB 2.0, optional Bluetooth 5.0 module |
| Software Compliance | Audit-trail enabled logging, user-access levels, data export in CSV/Excel format |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | Dr-M1202P |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical (Ion-Selective Electrode, ISE) |
| Measurement Range | 0–100 mg/L NH₃–N |
| Accuracy | ±10% of reading |
| Detection Limit | 0 mg/L (defined by electrode sensitivity and signal-to-noise ratio) |
| Measurement Time | ≤60 seconds per sample |
| Sample Throughput | Three independent electrode measurement positions |
| Display | 5-inch HD color TFT touchscreen |
| Language Support | English & Chinese |
| Data Storage | Up to 1,000,000 measurement records |
| Power Supply | Rechargeable Li-ion battery + USB Type-C AC/DC adapter (dual-mode operation) |
| Electrode Protection Rating | IP68 |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Electrode Cable Length | 3–5 m (customizable) |
| Built-in Thermal Printer | Yes |
| Data Interface | USB Type-C (for charging, data export, and firmware update) |
| Reading Modes | Real-time, Timed, and Interval |
| Auto Temperature Compensation | Yes |
| Sleep Mode | Configurable idle timeout |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Dr-M5100 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Principle | Infrared Spectrophotometry (Triple-Wavelength Absorption at 2930 cm⁻¹, 2960 cm⁻¹, and 3030 cm⁻¹) |
| Measurement Range | 0.0–800 mg/L (water matrix) |
| Detection Limit | 3σ ≤ 0.03 mg/L (based on 11 blank measurements) |
| Accuracy | ±2% relative error |
| Wavenumber Range | 2400–3400 cm⁻¹ (equivalent to 2941–4167 nm) |
| Wavenumber Accuracy | ±1 cm⁻¹ |
| Absorbance Range | 0.0000–2.0000 AU (T = 100%–1%) |
| Extraction Solvents | Perchloroethylene or Carbon Tetrachloride (compliant with HJ 637–2018) |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9001 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Digestion Spectrophotometry |
| Wavelength Range | 340–900 nm |
| COD Range | 2–20,000 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±2% |
| LOD | 2 mg/L |
| Digestion & Measurement Time | 10 min |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | < 0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤ 0.2% T |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Resolution | 0.001 Abs |
| Light Source | Imported Cold LED (Lifespan > 100,000 h) |
| Pre-stored Calibration Curves | 1,000 |
| Data Storage Capacity | 1,000,000 records |
| Display | 8-inch HD capacitive touchscreen |
| Sample Holders | Rotatable 16-mm tube position (360°), dual cuvette positions (10 mm & 30 mm pathlength), and four independent digital electrode ports |
| Detection Modes | Absorbance, Transmittance, Concentration |
| Calibration Options | Single-point and multi-point standard calibration |
| Data Export | USB flash drive |
| Housing Material | Corrosion- and heat-resistant ABS |
| Dimensions | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9003 |
| Measurement Principle | Spectrophotometry (UV-Vis) |
| Detection Range | 0–100 mg/L (for both TP and TN) |
| Accuracy | ≤ ±5% |
| Detection Limit | Not specified (instrument-level LOD determined by method, not instrument spec) |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | < 0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤ 0.2% T |
| Absorbance Resolution | 0.001 Abs |
| Optical Stability | ≤ ±0.005 Abs / 20 min |
| Light Source | Imported cold-light LED (rated lifetime > 100,000 h) |
| Display | 8-inch HD capacitive touchscreen |
| Sample Holders | Rotatable tube holder (360°), dual cuvette positions (10 mm & 30 mm pathlength), four independent digital electrode ports |
| Calibration | Single- or multi-point calibration with up to 1000 pre-stored method curves |
| Data Storage | 1,000,000 measurement records |
| Interface | USB port for data export (U-disk compatible), built-in thermal printer |
| Housing Material | Corrosion- and heat-resistant ABS |
| Dimensions | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Brand | Water Doctor (DoctorWater) |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9901 |
| Instrument Type | Portable |
| Measurement Principle | Rapid Digestion Spectrophotometry (Lab-Grade) |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | <0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤0.2% T |
| COD Range | 2–20,000 mg/L |
| COD Accuracy | ≤±5% |
| LOD (COD) | 2 mg/L |
| Optical Stability | ≤±0.005 Abs/20 min |
| Resolution | 0.001 Abs |
| Photometric System | Fiber-Optic Detection |
| Display | 5-inch HD Touchscreen |
| Calibration Modes | Single-point & Multi-point |
| Pre-stored Curves | 600 |
| Data Storage | 1,000,000 records |
| Power Supply | Rechargeable Li-ion Battery + AC Adapter |
| Housing Material | Corrosion-Resistant ABS |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W112 |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Principle | Spectrophotometric (4-AAP Method per HJ 503-2009 / ISO 6439) |
| Primary Target Analyte | Volatile Phenols |
| Measured Parameters | Turbidity (0–20 NTU / 0–200 NTU / 0–1000 NTU), Color, Free Chlorine, Chlorine Dioxide, Total Hardness, Permanganate Index (COD<sub>Mn</sub>), Ammonia Nitrogen, Ozone, Urea, Iron, Manganese |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Photometric Resolution | 0.001 Abs |
| Optical Stability | ≤±0.005 Abs/20 min |
| Repeatability | ≤±2% |
| Accuracy | ≤±5% |
| Light Source | Imported Long-Life Cold LED (≥100,000 h) |
| Sample Cell | 16 mm and 25 mm round cuvettes |
| Display | 5-inch HD color TFT capacitive touchscreen |
| Language Support | English & Chinese |
| Power Supply | Rechargeable Li-ion battery + AC adapter (dual-mode operation) |
| Data Storage | Up to 1,000,000 measurement records |
| Connectivity | USB Type-C (charging + data transfer) |
| Printing | Built-in thermal printer |
| Calibration Modes | Blank, Factor, and Multi-point Curve Calibration |
| Interference Compensation | Integrated chromaticity & optical attenuation correction algorithm |
| Housing Material | Corrosion-resistant ABS with IP67-rated enclosure |
| Compliance | Designed in accordance with HJ 503-2009 (China), ISO 6439:1984, and ASTM D1209/D5810 for phenolic compounds |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W5000 |
| Instrument Type | Portable |
| Measurement Principle | Ultraviolet Fluorescence Spectrometry |
| Measurement Range | 0.005–1500 mg/L (as petroleum hydrocarbons) |
| Detection Limit | 0.005 mg/L |
| Accuracy | ±5% of reading |
| Detector | UV-optimized photomultiplier tube (PMT) with excitation at 254 nm and emission detection at 365 nm |
| Measurement Time | ≤120 seconds per sample |
| Display | 5-inch high-resolution color TFT touchscreen |
| Power Supply | Rechargeable lithium-ion battery (standby >30 days |
| Data Storage | 1,000,000 measurement records with timestamp, sample ID, and calibration history |
| Connectivity | USB 2.0 for data export and firmware update |
| Operating Environment | 5–40 °C, relative humidity <85% RH (non-condensing) |
| Sample Vessel | Dedicated quartz-cuvette-compatible disposable glass tubes (10 mm pathlength) |
| Extraction Solvent | n-Hexane (ASTM D7066-compliant) |
| Auto-Sleep | Activated after 5 minutes of inactivity |
| Built-in Thermal Printer | Yes |
| Color Compensation Algorithm | Real-time spectral correction for chromophoric interference |
| Onboard Calibration Module | User-accessible zero/span and multi-point calibration routines |
| Compliance | Designed to support ASTM D7678, ISO 9377-2, and EPA Method 1664B workflows (extraction-dependent) |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W660 |
| Measurement Principle | In-situ Fluorescence Detection |
| Chlorophyll-a Range | 0.01–500 µg/L |
| Phycocyanin (Cyanobacteria) Range | 0–40 × 10⁶ cells/L |
| Detection Limit | 0.01 µg/L (Chl-a), 1 × 10⁴ cells/L (Cyanobacteria) |
| Resolution | 0.01 µg/L (Chl-a), 10⁴ cells/L (Cyanobacteria) |
| Accuracy | ±5% FS |
| Display | 5-inch HD color capacitive touchscreen |
| Power | Rechargeable Li-ion battery (≥30-day standby), AC adapter support |
| Data Storage | 1,000,000 records |
| Interface | USB 2.0 |
| Printer | Integrated thermal printer |
| Sample Cell | 10 mm square quartz cuvette |
| Housing Material | Corrosion-resistant ABS |
| Operating Temp | 5–40 °C |
| Relative Humidity | <85% RH (non-condensing) |
| Compliance | Designed for field-deployable compliance with ISO 10260 (water quality — determination of chlorophyll-a by fluorescence), ASTM D7212-19 (standard test method for chlorophyll-a in water by fluorometric measurement) |
| Brand | Water Doctor (DoctorWater) |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W900 |
| Instrument Type | Portable |
| Biological Indicator | Bioluminescent Bacteria (Aliivibrio fischeri, Photobacterium phosphoreum, Vibrio qinghaiensis) |
| Operating Ambient Temperature | 10–40 °C |
| Reagent Storage Temperature | 2–8 °C (adjustable, ±1 °C accuracy) |
| Detection Temperature Control | 15–25 °C (adjustable, ±1 °C accuracy) |
| Incubation Capacity | 10 sample positions with independent temperature control |
| Detection Time | ≤15 minutes post-sample preparation |
| Compliance | GB/T 15441–1995, ISO 11348-3 |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-WCI |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | DPD Colorimetric Spectrophotometry (ASTM D1253, ISO 7393-2, EPA 330.5) |
| Measuring Parameter | Free Chlorine (Residual Chlorine) |
| Range | 0.02–2.00 mg/L as Cl₂ |
| Accuracy | ≤ ±5% of reading |
| Repeatability | ≤ ±2% RSD |
| Detection Limit | 0.02 mg/L |
| Absorbance Resolution | 0.001 Abs |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Optical Stability | ≤ ±0.005 Abs / 20 min |
| Display | 8-inch HD capacitive touchscreen |
| Language Support | English & Chinese |
| Sample Holders | Rotatable 16-mm cuvette position + fixed 25-mm cuvette position |
| Calibration Modes | Blank, Factor, and Multi-point Curve Calibration |
| Data Storage | Up to 1,000,000 measurement records |
| Connectivity | USB port for data export |
| Output Modes | Concentration (mg/L) or Absorbance (Abs) |
| Printer | Built-in thermal printer |
| Housing Material | Flame-retardant ABS with chemical resistance |
| Dimensions (W×D×H) | 392 × 315 × 170 mm |
| Light Source | Long-life imported cold LED (rated >100,000 hours) |
| Brand | WAYEAL |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | AQ7000 |
| Quotation | Upon Request |
| Monitored Pollutants | SO₂, NO, NOₓ, CO, O₃, PM₂.₅, PM₁₀ |
| Meteorological Parameters | Wind Speed, Wind Direction, Temperature, Relative Humidity, Atmospheric Pressure |
| Optional Add-ons | Rainfall, Noise Level, Solar Radiation |
| Data Acquisition | Integrated Substation Data Logger with Standardized Digital Interfaces |
| Calibration System | Dynamic Calibrator and Zero Air Generator |
| Compliance Framework | Designed for alignment with HJ 653–2013, HJ 654–2013, ISO 20815, EPA Reference Methods (e.g., EQOA-0017 for PM₂.₅), and GLP/GMP-aligned data integrity practices |
| Brand | WAYEAL |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM/ODM) |
| Country of Origin | China |
| Model | AQ7100 |
| Pricing | Available upon Request |
| Measured Parameters | SO₂, NO₂, CO, O₃, PM₂.₅, PM₁₀, TVOC, Temperature, Relative Humidity |