Measurement Range: 0.00–14.00 pH, Accuracy: ≤±0.02 pH, Resolution: 0.01 pH
Response Time: 20 sec; Drift: ≤±0.1 pH/24h; Sensitive Membrane Impedance: ≤500 MΩ
Stable reference system: Ag/AgCl with gel electrolyte, excellent anti-pollution performance
PTFE diaphragm for long-term online monitoring without clogging
Operating Temperature: 0–60℃, Waterproof Rating: IP68
Output Mode: MODBUS / RS-485, Power Supply: 12–24 VDC, Rated Power: <0.5 W
Installation: 3/4″ NPT Thread, suitable for online water quality monitoring
 

Measuring Range: 0–50 Hazen, Pt-Co, PCU, mg Pt/L
Minimum Readout: 1 chromaticity
Accuracy & Repeatability: ±5% F.S, repeatability ≤3%
Features: Desktop type, stable performance, maintenance-free, cost-effective
Display & Measurement: Large-screen LCD digital display, direct chromaticity reading
Calibration & Method: Photoelectric colorimetry, calibrated with platinum-cobalt standard solution
Light Source & Durability: High-intensity, long-life light source, ready in 30 seconds
 

Measuring Range: 0–50 / 0–500 Hazen, Pt-Co, PCU, mg Pt/L
Minimum Readout: 0.1 degrees
Accuracy & Repeatability: ±5% F.S, repeatability ≤1.5%
Features: Microcomputer system, touch keyboard, LCD backlit display, direct chromaticity reading, turbidity compensation, self-diagnosis prompts
Calibration: Fast, programmable 1–7 point automatic multi-point calibration
Data Storage: Built-in clock memory, stores latest 20 measurement sets, long-term storage and recall
Power & Interface: AC 220V ±10% 50Hz/5W, standard RS232 interface, printer-compatible
 

Measuring Range: 0–50 / 0–500 NTU, chromaticity units Hazen, Pt-Co, PCU, mg Pt/L
Minimum Readout: 0.1 NTU / chromaticity
Accuracy & Repeatability: ±3% F.S, repeatability ≤1.5%
Features: Microcomputer system, touch keyboard, LCD backlit display, direct chromaticity reading, turbidity compensation, self-diagnosis prompts
Calibration: Programmable multi-point calibration (1–7 points) for high accuracy
Data Storage: Built-in clock memory, stores latest 20 measurement sets, long-term storage and recall
Power & Interface: AC 220V ±10% 50Hz/5W, standard RS232 interface, optional built-in printer
 

Measuring Principle: 90° scattered light for accurate turbidity analysis
Measuring Range: 0–20 / 0–200 / 0–800 NTU depending on model
Minimum Readout: 0.01–0.1 NTU (model dependent)
Accuracy & Repeatability: ±6% F.S, repeatability ≤0.5%, zero drift ±0.5% F.S
Features: High-intensity long-life light source, chromaticity compensation, large LCD display, reliable optical path, stable long-term operation
Applications: Suitable for low, medium, and high turbidity water samples in power plants, waterworks, beverage and pharmaceutical industries, sewage treatment, environmental monitoring
Additional: Easy operation, cost-effective design, fast warm-up within 30 seconds
 

Measuring Principle: 90° scattered light, direct turbidity reading
Measuring Range: 0–10 / 0–100 / 0–1000 / 0–4000 NTU depending on model
Minimum Readout: 0.001–0.01 NTU (model dependent)
Accuracy & Repeatability: ±6% F.S, repeatability ≤0.5%, zero drift ±0.5% F.S
Features: Microcomputer control, LCD backlit display, automatic multi-point calibration, average measurement mode, data storage and query, automatic/manual range switching
Connectivity: RS232 data communication interface, optional built-in or external printer
Additional: Optional spectrum measurement unit, flow sampling device, continuous measurement capability
 

Measuring Principle: 90° scattered light, direct turbidity reading
Measuring Range: 0–10 / 0–100 / 0–500 / 0–1000 NTU (depending on model)
Minimum Readout: 0.001 NTU or 0.01 NTU (model dependent)
Accuracy: ±6% (±2% F.S); Repeatability ≤0.5%; Zero drift ≤±0.5% F.S
Calibration: Automatic 1–5 point calibration with data smoothing and nonlinear processing
Features: LCD backlight display, microcomputer control, data storage & query, RS232 interface; “P” models include built-in printer
Applications: Waterworks, wastewater treatment, food & beverage, pharmaceuticals, hospitals, and environmental monitoring
 

Measurement Range: 0.00–1000 NTU with automatic range switching
Resolution: 0.001 NTU; Repeatability ≤0.5%; Indication Error ≤±6%
Light Source: 6V 10W tungsten halogen lamp (USEPA 180.1 compliant)
Calibration: 1–8 points with Formazin standards or zero water
Display & Storage: 7-inch LCD touch screen, stores up to 1000 sets of data (GLP-compliant)
Interfaces: USB and RS232 for data output; reset function to factory default
Dimensions/Weight: 430×430×300 mm / 9 kg
 

Test Method: Photoelectric colorimetric detection principle
Models: P9022 (2 parameters), P9025 (5 parameters), P9029 (9 parameters)
Parameters: Residual Chlorine, Total Chlorine, Combined Residual Chlorine, Chlorine Dioxide, Nitrite, Dissolved Oxygen, Ammonia Nitrogen, Iron
Measuring Range: 0–12 mg/L (depending on parameter); Minimum Indication: 0.001 mg/L
Accuracy: Linearity Error ±5% FS; Repeatability 2%
Features: Microcomputer with touch keyboard, backlight LCD display, multi-point curve calibration
Power Supply: AC 220V / 50Hz / 5W
 

Test Method: DPD photoelectric colorimetric determination
Parameters: Ozone, Chlorine, Total Chlorine, Carbon Dioxide
Measuring Range: 0–5 mg/L (Ozone 0–2 mg/L)
Minimum Indication: 0.01 mg/L; Linearity Error: ±5% F.S; Repeatability: 3%
Features: Dual optical path system, automatic light source selection, desktop microcomputer configuration
Power Supply: DC 9V / 0.1A
Optional: Built-in printer, rapid assay reagents for long-term stable supply