Water Quality Analysis
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| Brand | Jiada Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Region of Origin | Domestic (China) |
| Model | GDYS-501M |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Measurable Parameters | Nitrite Nitrogen (A & B), Dissolved Oxygen, Sulfide, Ammonia Nitrogen, Nitrate Nitrogen, Volatile Phenols, Temperature, pH, Salinity |
| Light Source | High-Brightness LEDs |
| Wavelengths | 430 nm, 520 nm, 538 nm, 630 nm |
| Detection Limits | Nitrite-N (A): 0.01 mg/L |
| Nitrite-N (B) | 0.001 mg/L |
| DO | 0.1 mg/L |
| Sulfide | 0.02 mg/L |
| NH₃-N | 0.10 mg/L |
| NO₃⁻-N | 0.5 mg/L |
| Volatile Phenols | 0.10 mg/L |
| Temp | ±0.2 °C |
| pH | ±0.2 |
| Salinity | ±0.2% |
| Measurement Ranges | Nitrite-N (A): 0.00–0.40 mg/L |
| Nitrite-N (B) | 0.000–0.100 mg/L |
| DO | 0.0–10.0 mg/L |
| Sulfide | 0.00–1.00 mg/L |
| NH₃-N | 0.00–5.00 mg/L |
| NO₃⁻-N | 0.0–20.0 mg/L |
| Volatile Phenols | 0.10–5.00 mg/L |
| Temp | −50 to +300 °C |
| pH | 0.2–14.0 |
| Salinity | 0.2–28.0% |
| Accuracy | ±5% FS |
| Power Supply | AC Adapter (220 V ±10%, 50 Hz ±1 Hz) or Rechargeable Li-ion Battery (7.4 V, 900 mAh) |
| Dimensions | 310 × 225 × 125 mm |
| Weight | 1.7 kg |
| Brand | Jiada Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Region of Origin | Domestic (China) |
| Model | GDYS-601S |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Measurable Parameters | Nitrite Nitrogen, Ammonia Nitrogen, Dissolved Oxygen, pH, Salinity, Temperature |
| Measurement Range | Nitrite-N: 0.01–0.40 mg/L |
| Ammonia-N | 0.1–9.0 mg/L |
| DO | 0.1–10.0 mg/L |
| pH | 0.0–14.0 |
| Salinity | 0.2–28% |
| Temperature | −50 to +150 °C |
| Accuracy | Nitrite-N: ±5% |
| Ammonia-N | ±5% |
| DO | ±5% |
| pH | ±0.2 |
| Salinity | ±2% |
| Temperature | ±1% |
| Analysis Time | 3–20 min per parameter |
| Methodology | Standardized Colorimetric Methods (GB-based) |
| Reagent Format | Single-use, parameter-specific test kits |
| Display | Direct digital concentration readout |
| Brand | Jiada Xiaotian’e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-301S |
| Instrument Type | Portable |
| Measurement Principle | DPD Spectrophotometry |
| Measured Parameters | Residual Chlorine, Chlorine Dioxide, Chlorite |
| Measurement Ranges | Chlorine Dioxide: 0.00–3.00 mg/L |
| Residual Chlorine | 0.00–2.50 mg/L |
| Chlorite | 0.00–2.00 mg/L |
| Accuracy | ±5% |
| LOD | Chlorine Dioxide: 0.02 mg/L |
| Residual Chlorine | 0.01 mg/L |
| Chlorite | 0.05 mg/L |
| Light Source | High-Brightness LED |
| Wavelength | 520 nm |
| Absorbance Range | 0.000–2.000 Abs |
| Stability | ≤0.005 Abs/h |
| Power Supply | 9 V Battery (Auto-Shutdown after 30 min |
| Operating Temperature | 0–50 °C |
| Brand | Jiada Xiaotian’e |
|---|---|
| Origin | Jilin, China |
| Model | GDYS-TS600 |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Measurable Parameters | Color, Turbidity, pH, Total Hardness, Free Chlorine, Total Chlorine, Residual Chlorine Species, Heavy Metals (As, Cr⁶⁺, Fe, Mn, Cu, Zn, Al, etc.), Microbiological Indicators (Total Coliforms, E. coli, Heterotrophic Plate Count), Oxidants (O₃, ClO₂, ClO₂⁻), Nutrients (NO₃⁻-N, NH₃-N, PO₄³⁻, NO₂⁻-N), Organic Indices (CODₘₙ, Formaldehyde, Phenols), Conductivity, Sulfate, Fluoride, Cyanide, Chloride, Sulfide, etc. |
| Display | 10-inch capacitive color touchscreen with integrated QWERTY keyboard |
| Connectivity | Wi-Fi & Bluetooth 5.0 |
| Data Storage | Internal ≥32 GB SSD + cloud-sync capable |
| Printing | Built-in thermal printer + external USB/Bluetooth printer support |
| Power Supply | Rechargeable Li-ion battery (≥8 h continuous operation) |
| Enclosure | IP65-rated ABS carrying case with shock-absorbing design |
| Compliance | Designed to support ASTM D1293 (pH), ASTM D1889 (turbidity), ISO 7027 (turbidity), ISO 8694 (color), USP <643> (conductivity), EPA 180.1 (coliforms), GB/T 5750 series (Chinese Standard Methods for Drinking Water) |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-101SM2 |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Analyte | Manganese |
| Detection Limit | 0.50 mg/L |
| Measurement Range | 0.00–4.00 mg/L |
| Accuracy | ±5% |
| Compliance Standard | GB/T 5750.6–2006 |
| Analysis Time | ≤10 minutes per sample |
| Reagent Format | Single-use proprietary test kit |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable |
| Model | GDYS-101SN4 |
| Measurement Principle | Colorimetric Method (DPD-based) |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | Residual Chlorine: 0.00–2.50 mg/L |
| Total Chlorine | 0.00–2.50 mg/L |
| Accuracy | ±5% of reading |
| Detection Limit | 0.01 mg/L for both residual and total chlorine |
| Light Source | High-brightness LED |
| Wavelength | 520 nm |
| Power Supply | DC 9 V |
| Dimensions | 190 × 110 × 95 mm |
| Weight | 0.4 kg |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable |
| Measurement Principle | Potassium Dichromate Digestion Method (On-site Compatible) |
| Wavelengths | 410 nm and 630 nm |
| Measurement Ranges | Range 1: 0–100 mg/L |
| Range 2 | 50–1000 mg/L |
| Range 3 | 500–3000 mg/L |
| Accuracy | ±5% |
| Detection Limit | 4 mg/L |
| Light Source | High-Brightness LED |
| Power Supply | DC 9 V |
| Dimensions | 200 × 105 × 95 mm |
| Weight | 0.4 kg |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-101SR |
| Pricing | Available Upon Request |
| Detection Method | DL Colorimetric Method |
| Detection Time | 3 minutes |
| Lower Detection Limit | 0.1 mg/L |
| Measurement Range | 0.0–10.0 mg/L |
| Accuracy | ±5% |
| Reagent Format | Single-use dedicated reagent kit |
| Sample Types | Distilled water, drinking water, domestic water, aquaculture water, seawater, surface water, wastewater |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-101SV |
| Pricing | Available Upon Request |
| Detection Limit | 0.02 mg/L |
| Measurement Range | 0.00–1.00 mg/L |
| Accuracy | ±5% |
| Compliance | GB/T 5750.5–2006 |
| Analysis Time | ≤10 minutes per sample |
| Reagent Format | Single-use, pre-packaged test kits |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-101SX3 |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Measured Parameter | Nitrite-Nitrogen (NO₂⁻-N) |
| Detection Limit | 0.001 mg/L |
| Measurement Range | 0.000–0.100 mg/L |
| Accuracy | ±5% |
| Compliance | GB/T 5750.5–2006 |
| Display | LCD with Microcontroller Control |
| Design | Compact, Lightweight, Field-Deployable |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | GDYS-101SZ2 |
| Pricing | Available Upon Request |
| Detection Limit | 0.5 NTU |
| Measurement Range | 0.0–60.0 NTU |
| Accuracy | ±5% of reading |
| Compliance | GB/T 5750.4–2006 |
| Analysis Time | ≤3 minutes per sample |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-102SL |
| Pricing | Upon Request |
| Detection Limit | 20.0 mg/L |
| Measurement Range | 0.0–500.0 mg/L |
| Accuracy | ±5% |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Portable Volatile Phenol Analyzer |
| Model | GDYS-103SK |
| Detection Limit | 0.1 mg/L |
| Measurement Range | 0.0–5.0 mg/L |
| Accuracy | ±5% |
| Analysis Time | ≤10 minutes |
| Reagent Format | Single-use, pre-packaged test kit |
| Compliance | Designed for field-deployable water quality screening per standard colorimetric phenol detection protocols |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Model | GDYS-201M (65 Parameters) |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Capabilities | 65 Quantitative Parameters Including Free Chlorine, Fluoride, Iron, Chloride, etc. |
| Measurement Time | 5–30 Minutes per Parameter |
| Display | Large Backlit LCD with Chinese Interface |
| Control System | Embedded Microcontroller with Interactive GUI |
| Data Functions | Real-time Measurement, Parameter Configuration, Onboard Storage, Statistical Analysis, USB Export |
| Compliance | Designed to Align with GB/T Standards (China National Standards) for Environmental Water Testing |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Region of Origin | Domestic (China) |
| Model | GDYS-401M |
| Price Range | USD 4,200 – 7,000 |
| Instrument Type | Benchtop Laboratory Water Quality Analyzer |
| Target Analytes | Total Nitrogen (TN), Total Phosphorus (TP), Chemical Oxygen Demand (COD), Ammonia Nitrogen (NH₃-N) |
| Wavelength Range | 200–1000 nm |
| Spectral Bandwidth | 2 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | 0.2 nm |
| Photometric Accuracy | ±0.5% T |
| Photometric Repeatability | 0.2% T |
| Baseline Stability | 0.002 A/h |
| Stray Light | ≤0.05% T |
| Data Interface | USB |
| Light Sources | Imported Deuterium Lamp & Tungsten Halogen Lamp |
| Power Supply | AC 220 V ±10% |
| Operating Temperature | 0–50 °C |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Manufacturer |
| Origin Category | Domestic |
| Model | GDYS-601M |
| Price Range | USD 1,400–4,200 (est.) |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Measurable Parameters | Color, Turbidity, Metasilicic Acid, Iodide, etc. |
| Light Source | High-Brightness LED |
| Wavelengths | 380 / 410 / 430 / 520 / 538 / 595 / 630 nm |
| Photometric Range | 0.000–2.000 Abs |
| Optical Stability | ±0.005 Abs/h |
| Detector | Integrated Photodiode Sensor |
| Sample Cell | 30 mm cylindrical glass cuvette and 50 mm rectangular glass cuvette |
| Power Supply | AC 220 V ±10%, 50 Hz ±1 Hz |
| Rechargeable Li-ion Battery | 7.4 V, 900 mAh |
| Operating Temperature | 5–40 °C |
| Display | 4.7-inch TFT LCD with Chinese UI |
| Data Interface | USB 2.0 & RS232 |
| Compliance | Designed for field-deployable compliance with GB/T 5750 (China’s Standard Methods for Drinking Water), ISO 7027 (turbidity), ISO 9297 (iodide), and ASTM D1208 (color) |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-601SB |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Parameters | Chlorine Dioxide, Free Chlorine, Total Chlorine, Chlorite, Ozone, Formaldehyde |
| Light Source | High-Brightness LED |
| Wavelengths | 520 nm, 538 nm |
| LOD | Free Cl₂: 0.01 mg/L |
| Total Cl₂ | 0.01 mg/L |
| ClO₂ | 0.02 mg/L |
| ClO₂⁻ | 0.05 mg/L |
| O₃ | 0.05 mg/L |
| HCHO | 0.05 mg/L |
| Measurement Range | Free Cl₂ & Total Cl₂: 0.00–2.50 mg/L |
| ClO₂ | 0.00–3.00 mg/L |
| ClO₂⁻ & O₃ | 0.00–2.00 mg/L & 0.00–2.50 mg/L respectively |
| HCHO | 0.00–1.50 mg/L |
| Operating Temperature | 15–40 °C |
| Power Supply | DC 9 V (9V alkaline battery) |
| Dimensions | 170 × 90 × 35 mm |
| Weight | 300 g |
| Cuvette | Dedicated 30-mm disposable reaction/measurement cuvette |
| Calibration | Built-in calibration curves |
| Brand | Jiada Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-800M |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Measurable Parameters | Free Chlorine, Chlorine Dioxide, COD (Chemical Oxygen Demand), Total Hardness, Color, Turbidity |
| Display | 12-inch Multi-Touch LCD |
| Connectivity | Ethernet, USB, Wi-Fi, 4G |
| Power Supply | AC/DC Dual Mode |
| Light Source | High-Brightness LEDs |
| Wavelengths | 380, 430, 470, 520, 538, 595, 630 nm |
| Photometric Stability | ±0.005 Abs/h |
| Detector | Integrated Photodiode Sensor |
| Sample Cell | Cylindrical Glass Cuvettes & Rectangular Glass Cuvettes |
| Operating Temperature | 5–40 °C |
| Enclosure | IP65-Rated Waterproof & Shock-Resistant Carry Case |
| Built-in Thermal Printer | Yes |
| Compliance | Designed for ASTM D1253, ISO 7888, ISO 7027, ISO 8694, USP <643>, and GB/T 5750 series methods |
| Brand | JiDa Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | GDYS-101SE2 |
| Instrument Type | Portable |
| Measurement Principle | DPD-based Spectrophotometry |
| Measured Parameter | Chlorine Dioxide (ClO₂) |
| Measurement Range | 0.00–3.00 mg/L |
| Accuracy | ≤5% |
| Repeatability | ±0.01 mg/L |
| Resolution | 0.01 mg/L |
| Limit of Detection (LOD) | 0.02 mg/L |
| Light Source | 520 nm LED |
| Photometric Stability | ±0.005 Abs / 20 min |
| Measurement Time | 1 minute |
| Operating Temperature | 15–40 °C |
| Power Supply | DC 9 V (battery-powered) |
| Dimensions | 170 × 90 × 35 mm |
| Weight | 300 g |
| Brand | JiDa Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Model | GDYS-201MC |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Parameters | Free Chlorine, Total Chlorine, Ozone, Turbidity, Fluoride, Nitrite Nitrogen, Ammonia Nitrogen, Dissolved Oxygen |
| Light Source | High-Brightness LED |
| Optical Stability | 0.005 Abs/h |
| Sample Cell | Cylindrical Glass Cuvette & Standard Glass Cuvette |
| Power Supply | AC 220 V ± 22 V, 50 Hz ± 1 Hz |
| Rechargeable Battery | 7.4 V / 1800 mAh |
| Operating Temperature | 5 °C to 40 °C |
| Connectivity | USB, RS232, Bluetooth (for wireless printing) |
| Brand | JiDa Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Model | GDYS-900M |
| Instrument Type | Portable/HANDHELD Water & Air Quality Analyzer |
| Detection Parameters | Residual Chlorine, Total Chlorine, Ozone, Chlorine Dioxide, Ammonia Nitrogen, Sulfide (Water) |
| Light Source | High-Brightness LED |
| Wavelengths | 380, 430, 470, 520, 538, 595, 630 nm |
| Photometric Stability | ≤0.005 Abs/h |
| Operating Temperature | 5–40 °C |
| Detector | Integrated Photodiode Sensor |
| Sample Cell | Cylindrical Glass Cuvettes & Standard Glass Cuvettes |
| Power Supply | AC/DC Dual Mode |
| Data Storage | 32 GB internal flash memory |
| Connectivity | USB 2.0, RJ45 Ethernet, Built-in Wi-Fi (IEEE 802.11 b/g/n) |
| Display | Color TFT Touchscreen |
| OS | Windows Embedded Standard 7 |
| Onboard Software | Preloaded calibration curves, sample metadata entry (sample ID, analyte, operator, lab name), audit-ready data logging |
| Printing | Integrated thermal printer + external printer support via USB/Ethernet/Wi-Fi |
| Brand | JiDa-Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-101SF |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Analyte | Fluoride |
| Detection Limit | 0.01 mg/L |
| Measurement Range | 0.00–1.00 mg/L |
| Accuracy | ±5% |
| Analysis Time | ≤30 minutes |
| Method Compliance | GB/T 5750.5–2006 |
| Brand | JiDa-Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | GDYS-101SG |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Target Analyte | Hexavalent Chromium (Cr(VI)) |
| Detection Limit | 0.01 mg/L |
| Measurement Range | 0.00–1.00 mg/L |
| Accuracy | ±5% |
| Method Compliance | GB/T 5750.6–2006 |
| Analysis Time | ≤3 minutes per sample |
| Reagent Format | Single-use, pre-packaged test kit |
| Brand | JiDa-Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | GDYS-101SL |
| Measurement Parameter | Total Phosphorus |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric Method (Standardized Molybdenum Blue Reaction per GB 11906–1989) |
| Measurement Range | 0.00–1.00 mg/L |
| Accuracy | ±5% of reading |
| Detection Limit | 0.02 mg/L |
| Brand | JiDa-Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Model | GDYS-MW400 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Parameters | Total Phosphorus, Ammonia Nitrogen, Total Nitrogen, Chemical Oxygen Demand (COD) (High-Range & Low-Range) |
| Wavelengths | 380 / 430 / 470 / 520 / 538 / 595 / 630 nm |
| Photometric Stability | ±0.005 Abs/h |
| Detector | Integrated Photodiode Sensor |
| Light Source | High-Brightness LED (100,000 h lifetime) |
| Sample Cells | 19 mm cylindrical glass cuvettes & 50 mm rectangular glass cuvettes |
| Power Supply | AC 220 V ±10 %, 50 Hz ±1 Hz / Rechargeable Li-ion battery (8.4 V, 1800 mAh) |
| Operating Temperature | 5–40 °C |
| Dimensions | 310 × 225 × 125 mm |
| Weight | 1.7 kg |
| Data Interfaces | USB 2.0, RS-232 |
| Connectivity | Bluetooth (for printer pairing), PC software for Excel export and report generation |
| Brand | JiDa-Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | GDYS-101SN |
| Instrument Type | Portable |
| Measurement Principle | DPD Colorimetric Spectrophotometry |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | Residual Chlorine: 0.00–9.99 mg/L |
| Total Chlorine | 0.00–9.99 mg/L |
| Accuracy | ±5% of reading |
| Detection Limit | Residual Chlorine: 0.10 mg/L |
| Total Chlorine | 0.05 mg/L |
| Compliance Standard | GB/T 5750.11–2006 |
| Analysis Time | ≤3 minutes per sample |
| Reagent Format | Single-use, pre-packaged DPD reagent kits |
| Brand | JiDa-Xiaotianshe |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Origin Category | Domestic (China) |
| Model | GDYS-201M |
| Price Range | USD 280 – 1,400 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Measurable Parameters | Free Chlorine, Total Chlorine, Available Chlorine, Chlorine Dioxide, Chlorite, Ozone, Formaldehyde, Hydrogen Peroxide, Peracetic Acid |
| Light Source | High-Brightness LED (380/430/470/520/538/595/630 nm selectable per configuration) |
| Optical Stability | ≤0.005 Abs/h |
| Detector | Integrated Photodiode Sensor |
| Sample Cell | Cylindrical Glass Cuvette & Standard Glass Cuvette (10 mm pathlength) |
| Display | 4.7-inch TFT LCD with Chinese UI |
| Power Supply | Rechargeable Li-ion Battery + AC Adapter |
| Interfaces | USB 2.0, RS-232 (COM) |
| Brand | JiDa-Xiaotianshen |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | OEM Manufacturer |
| Region of Manufacture | Domestic (China) |
| Model | GDYS-301M |
| Price Range | USD 1,400–4,200 |
| Instrument Type | Benchtop Water Quality Analyzer |
| Test Parameters | Free Chlorine, Total Chlorine, Chlorine Dioxide, Nitrate Nitrogen, Ozone, Ammonia Nitrogen, and 35 Total Parameters |
| Brand | Jilin University & Little Swan |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Regional Classification | Domestic (China) |
| Model | GDYS-800M |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Principle | Spectrophotometry |
| Measurable Parameters | Free Chlorine, Chlorine Dioxide, COD (Permanganate Index), Total Hardness (as CaCO₃), Color, Turbidity, and 32 additional routine water quality indicators |
| Measurement Ranges | Free Chlorine: 0–5 mg/L |
| Total Hardness (as CaCO₃) | 0–500 mg/L |
| Photometric Stability | ≤0.005 Abs/h |
| Wavelength Options | 380, 430, 470, 520, 538, 595, 630 nm (configurable per parameter set) |
| Light Source | High-brightness LED |
| Detector | Integrated Photodiode Sensor |
| Sample Cell | Cylindrical Glass Cuvettes and Standard Glass Cuvette (10 mm pathlength) |
| Operating Environment | 5–40 °C |
| Display | 12-inch Multi-touch LCD |
| Connectivity | Ethernet, USB 2.0, Wi-Fi 802.11 b/g/n |
| Power Supply | AC Adapter (100–240 V) + Rechargeable Li-ion Battery (≥8 h continuous operation) |
| Data Output | Built-in Thermal Printer, CSV Export, Cloud Sync via Secure HTTPS API |
| Brand | Jilin University Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | MAI-50G |
| Price Range | USD 1,400–7,000 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Infrared Spectrophotometry (Dual-Wavelength Absorption at C–H Stretching Bands) |
| Measurement Range | 0.0–80.0 mg/L |
| Detection Limit | 0.2 mg/L |
| Accuracy | ≤1.5% RSD (at 10 mg/L) |
| Wavenumber Range | 3400–2400 cm⁻¹ |
| Absorbance Range | 0.0000–2.0000 Abs |
| Wavenumber Accuracy | ±2 cm⁻¹ |
| Wavenumber Repeatability | ±2 cm⁻¹ |
| Baseline Drift | ≤±0.005 Abs / 30 min |
| Operating Temperature | 5–35 °C |
| Linearity Correlation Coefficient | R > 0.999 |
| Power Supply | AC 220 V ±10%, 50–60 Hz |