Function: Benchtop water quality meter using DPD photometric method and photoelectric colorimetry for accurate water ion analysis
Determination Parameters: Residual chlorine, total chlorine, combined residual chlorine, carbon dioxide, ozone
Measuring Range & Accuracy: 0–5 mg/L (PL-1), 0–10 mg/L (PL-2), 0–2 mg/L (PL-3), minimum indication 0.01 mg/L, linear error ±5% FS, repeatability 3%
Display & Operation: Touch buttons, LCD with backlight, low voltage indication, automatic shutdown after 10 minutes of inactivity
Calibration & Light Source: Automatic zeroing and calibration, high-intensity long-life light source, 30-second warm-up, maintenance-free
Power & Design: AC 220V ±10%, 50Hz, 3W, desktop design, stable and reliable for long-term use
 

Function: Portable colorimetric chlorine analyzer for measuring available chlorine in water using photoelectric colorimetry
Measuring Range & Accuracy: 0–30 mg/L, minimum indication 0.01 mg/L, linear error ±5% FS
Display & Operation: Microcomputer touch keyboard, direct reading concentration value, automatic zeroing and calibration, average calculation, timer reminder
Power & Portability: Battery-powered (9V carbon or alkaline), low power consumption, automatic shutdown after 10 minutes of inactivity, lightweight 170g
Storage & Connectivity: Automatic data storage with power-off protection, optional USB or RS232 data output, optional AC/DC power adapter
Measuring Cell & Conditions: Φ25 mm colorimetric bottle, automatic wavelength selection, operating temperature 0–50°C, relative humidity 0–90%, dimensions 162×60×33 mm
 

Function: Portable high-range colorimetric chlorine analyzer for measuring available chlorine in water using photoelectric colorimetry
Measuring Range & Accuracy: 0–250 mg/L, minimum indication 0.1 mg/L, linear error ±5% FS
Display & Operation: Microcomputer touch keyboard, direct reading concentration value, automatic zeroing and calibration, average calculation, timer reminder, slope calibration
Power & Portability: Battery-powered (9V carbon or alkaline), low power consumption, automatic shutdown after 10 minutes of inactivity, lightweight 170g
Storage & Connectivity: Automatic data storage with power-off protection, optional USB or RS232 data output, optional AC/DC power adapter
Measuring Cell & Conditions: Φ25 mm colorimetric bottle, automatic wavelength selection, operating temperature 0–50°C, relative humidity 0–90%, dimensions 162×60×33 mm
 

Function: Portable multi-parameter water quality meter using DPD photometric method with photoelectric colorimetry
Measurement Parameters: Residual chlorine, total chlorine, combined residual chlorine, carbon dioxide, ozone
Measuring Range & Accuracy: 0–5 mg/L, 0–10 mg/L, 0–2 mg/L; minimum indication 0.01 mg/L; linear error ±5% FS; repeatability 3%
Display & Operation: Microcomputer touch buttons, LCD backlit display, auto-zero and calibration, stable and maintenance-free performance
Power Supply: 6F22 9V battery, with low voltage prompt and auto shutdown after 10 minutes
Portability: Compact design with portable case, fast warm-up (30 seconds), equipped with rapid determination reagents
 

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
 

Measurement Range: 0–1000 NTU (Turbidity), 0–1000 mg/L (Suspended Solids)
Resolution: 0.01 / 0.1 / 1.0 NTU or mg/L
Measurement Accuracy: ≤ ±0.1 NTU (≤ 1 NTU), ≤ ±5% (> 4 NTU)
Repeatability: ≤ ±0.1 NTU (< 10 NTU), ≤ ±1% (> 10 NTU)
Operating Temperature: 5–40°C
Protection Rating: IP65 Waterproof and Dustproof
Weight / Dimensions: 290g, 170 × 72 × 44 mm
 

Measurement Range: 0~1000 NTU (three selectable ranges: 0-20, 0-200, 0-1000 NTU)
Resolution: 0.01 / 0.1 / 1.0 NTU
Accuracy: ≤±0.1 NTU for <1 NTU/hour drift; ≤±0.2 NTU for 1-4 NTU/hour drift; ≤±5% for >4 NTU/hour drift
Repeatability: ≤±0.1 NTU (<10 NTU/hour), ≤±1% (≥10 NTU/hour)
Zero Drift: ≤±0.3% FS/30 minutes
Operating Temperature: 5~40°C
Protection Level: IP65, Lithium or Dry Battery Power Supply
 

Function: Turbidity measurement of water and transparent liquids using 90° scattered light principle
Measuring Range & Accuracy: 0–20 NTU / 0–200 NTU, minimum indication 0.01–0.1 NTU, indication error ±8% (±2.5% F.S), repeatability ≤0.8%, zero drift ±0.8% F.S
Display & Optical System: Large LCD display, high-precision optical path, chromaticity compensation to reduce color interference
Light Source: High-intensity, long-life, 30-second warm-up, maintenance-free
Applications: Suitable for pure water plants, mineral water plants, tap water plants, and low turbidity water analysis
Design & Stability: Compact, stable, reliable positioning, low drift circuit system, maintenance-free operation
 

Measuring Principle: 90° scattered light, direct turbidity reading
Measuring Range: 0–20 NTU / 0–200 NTU (model dependent)
Minimum Readout: 0.01 NTU or 0.1 NTU (depending on model)
Accuracy: ±8% (±2.5% F.S); Repeatability ≤1%; Zero drift ≤±1% F.S
Power Supply: AC 220/110V or DC operation with 5×AA alkaline batteries
Features: LCD display, low power consumption, automatic shutdown, AC/DC dual power supply
Compact & Lightweight: 235×75×65 mm design for portable use
 

Function: Portable turbidity meter for measuring suspended particles in water and transparent liquids using 90° scattered light
Measuring Range & Accuracy: 0–50 to 0–4000 NTU, minimum readout 0.001–0.01 NTU, basic error ±6% (±2% F.S), repeatability ≤0.5%, zero drift ±0.5% F.S
Display & Operation: LCD backlight display with date, time, measurement value and unit, touch keyboard, average measurement mode, data storage and query, range switch
Calibration & Data: Automatic zeroing, 1–7 point automatic calibration, chromaticity compensation, RS232 interface for external micro-printer connection
Power & Portability: AC 220V/50Hz, DC 1.5V (5 AA batteries), DC 7.5V adapter, long-life 100,000-hour light source, maintenance-free
Applications: Suitable for waterworks, power plants, sewage treatment, beverage factories, industrial water, hospitals, environmental monitoring