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
 

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
 

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 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 COD analyzer for rapid chemical oxygen demand testing in water using sealed catalytic digestion and colorimetric measurement
Measurement Range & Accuracy: COD 5–2000 mg/L, indication error ≤ ±5%, repeatability ≤3%, anti-chlorine interference ≤2000 mg/L
Display & Operation: Color touch screen with Chinese/English display, user-friendly interface, one-key recovery, self-calibration, USB connectivity, batch volume 16 samples
Digestion & Temperature Control: Digestion temperature 165 °C, adjustable 1–9999 min, temperature control accuracy ±0.5 °C, optical stability absorbance drift <0.002A/20min
Data Storage & Printing: Stores up to 300 standard curves and 1000 measurements, supports printing of single/multiple page results
Power & Dimensions: AC 220V ±10%, <500W, main unit 5 kg, digestion instrument 5.5 kg, measuring instrument 400×310×158 mm, digester 355×260×135 mm
 

Function: Suspended solids analyzer for measuring insoluble particulate matter in water and transparent liquids
Measuring Range & Accuracy: 0–100 to 0–4000 mg/L, minimum indication 0.1–1 mg/L, linear error ±5% FS, repeatability ≤2%
Display & Operation: LCD backlit display with date, time, measurement value and unit, touch keyboard, average measurement mode, data query, non-linear processing and smoothing
Calibration & Data: Programmable multi-point automatic calibration, chromaticity compensation, built-in clock memory for real-time storage and long-term recall
Power & Design: AC 220V ±10% 50Hz, 5W, desktop microcomputer configuration, high precision, maintenance-free long-life 100,000-hour light source
Applications: Suitable for power plants, water treatment, sewage treatment, beverage, industrial water, pharmaceutical, hospitals, and environmental monitoring
 

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 suspended solids analyzer for measuring insoluble particulate matter in water and transparent liquids
Measuring Range & Accuracy: 0–100 to 0–4000 mg/L, minimum indication 0.1–1 mg/L, linear error ±5% FS, repeatability ≤2%
Display & Operation: LCD backlight display with date, time, measurement value and unit, touch keyboard, average measurement mode, data storage and query, automatic range switching
Calibration & Data: Automatic zero adjustment, 1–5 point automatic calibration, chromaticity compensation, RS232 interface for connection to external micro-printer
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 power plants, water treatment, sewage treatment, beverage, industrial water, pharmaceutical, hospitals, and environmental monitoring
 

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
 

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