pH Measurement Range: 0.00 to 14.00 pH, Accuracy ±0.02 pH
ORP (Oxidation-Reduction Potential) Range: -1999 to 1999 mV, Accuracy ±0.1% F.S
Temperature Range: 0.0 to 80.0 ℃ (32.0 to 176.0 ℉), Accuracy ±0.5 ℃
Resolution: pH 0.01, ORP 1 mV, Temperature 0.1 ℃/℉
Power Supply: Dry Battery (7×3)
Compact and portable design: 165×75×51mm, Weight: 270g (without battery)
Features: Automatic compensation, one-key calibration, fast response, backlight display
 

Simultaneously detects 12 water quality parameters including residual chlorine (0-3 mg/L), pH (6.5-9.0), dissolved oxygen (0-20 mg/L), ammonia nitrogen (0-5 mg/L), phosphate (0-2 mg/L), copper (0-2 mg/L), and hexavalent chromium (0-2 mg/L).
Uses advanced German optical structure with imported high-brightness quasi-parallel LED cold light source for precise and stable measurement.
Supports multi-wavelength detection at 420nm, 470nm, 520nm, and 620nm for diverse parameter analysis.
Waterproof design (IP65), built-in 2500mAh rechargeable lithium battery, and storage of up to 5000 test results.
Compact size: 170×72×44mm, lightweight at 277g, portable with user-friendly OLED display and 5-key operation.
 

Conductivity measurement range: 0.0 μS/cm to 20.00 mS/cm, resolution 0.1 μS/cm
Temperature range: 0.0℃ to 100.0℃, automatic/manual compensation with adjustable coefficient (0.00-10.00%)
TDS measurement range: 0.0 mg/L to 20.00 g/L with adjustable coefficient (0.40-1.00)
Salinity measurement range: 0.0 mg/L to 13.00 g/L
Auto range 1-point calibration, graphite electrode K=1.0 with anti-bubble design
IP65 waterproof rating with boat-shaped floating design and auto value lock
Dimensions: 180×40×45 mm; Weight: 95g; Power: 1×1.5V AAA battery
 

Measurement Range: 0–2, 0–10, 0–50, 0–200 mg/L (expandable per user needs)
Measurement Accuracy: ±0.04 mg/L (TP ≤ 0.4 mg/L), ±10% (TP > 0.4 mg/L)
Detection Method: Ammonium Molybdate Spectrophotometry (Complies with GB 11893-89)
Automatic Calibration & Cleaning for accurate and easy maintenance
Data Storage: 50,000 historical records with real-time upload capability
Display: 8-inch TFT color touchscreen
Dimensions & Weight: 420×600×240 mm; 17.5 kg; Wall-mounted or cabinet installation
 

pH Measurement Range: 0.00–14.00 pH, Resolution: 0.01 pH, Accuracy: ±0.02 pH
Temperature Measurement Range: 0.0°C–100.0°C, Resolution: 0.1°C, Accuracy: ±0.5°C
Automatic 3-point standard buffer calibration with auto recognition
IP65 waterproof rating with boat-shaped float design, supports 1ml micro-sample measurement
Multi-line backlit LCD display with auto backlight and auto shut-off functions
Powered by 1 x 1.5V AAA battery, replaceable electrode
Dimensions: 180 × 40 × 45 mm; Weight: 95 g
 

Supports detection of 20 water quality parameters including residual chlorine, total chlorine, ozone, pH, dissolved oxygen, ammonia nitrogen, phosphate, nitrate, hexavalent chromium, copper, etc.
Uses imported German high-brightness quasi-parallel LED cold light source and advanced optical design for high accuracy and stability
OLED high-definition display, easy operation with 5-button control, stores up to 5000 test results
IP65 protection rating, full plastic casing with anti-oxidation, acid and alkali resistance, and waterproof sealed design
Multi-wavelength detection at 420nm, 470nm, 520nm, and 620nm for versatile water quality analysis
Built-in 2500mAh lithium battery, supports charging via data cable and computer connectivity
Dimensions: 170×72×44mm; Weight: 277g; portable and lightweight design
 

Measures multiple parameters including residual chlorine (0-3 mg/L), total chlorine (0-3 mg/L), chlorine dioxide (0-5 mg/L), ozone (0-2.5 mg/L), pH (6.5-9.0), urea, alkalinity, hardness, cyanuric acid, and chloride
OLED display with 5-key operation and acrylic protective panel
High-brightness quasi-parallel LED cold light source with 100,000 hours lifespan
IP65 waterproof design with sealed plastic casing resistant to acid, alkali, and oxidation
Supports up to 5000 data records storage, manual data saving, and PC connectivity (M900)
Dimensions: 170×72×44 mm; Weight: 277 g
Built-in 2500mAh rechargeable lithium battery with USB charging
 

TDS measurement range: 0–9999 ppm, Conductivity range: 0–9999 μS/cm
Temperature measurement range: 0–80℃ (32–176℉) with automatic temperature compensation
Measurement accuracy: ±2% Full Scale (F.S.)
Probe material: Pure titanium probe, corrosion-resistant; stainless steel temperature sensor
Display: Large, clear screen with value lock and low battery indicators
Power supply: 2 x 1.5V AG13 button cells, low power consumption with auto shutdown after 2 minutes idle
Product size/weight: 164×25×16 mm, 26.5 g
 

Residual Chlorine Range: 0-5 mg/L, Resolution: 0.01 mg/L, Accuracy: ±0.1 mg/L or ±5%
pH Range: 0-14, Resolution: 0.01, Accuracy: ±0.1
Temperature Range: -5 to 60°C, Resolution: 0.1°C, Accuracy: ±0.3°C
LCD Touchscreen with backlight, displays residual chlorine, pH, and temperature simultaneously
Self-cleaning flow-through tank with grinding beads for low maintenance
Supports wireless SIM connection for remote monitoring via PC or mobile app
IP65 waterproof and dustproof protection, suitable for harsh environments
Power Supply: AC 90-220V, 50/60Hz; Dimensions: 500×350×200 mm
 

Measurement Range: 0-2 mg/L, 0-25 mg/L, 0-50 mg/L, 0-100 mg/L (expandable according to user requirements)
Measurement Accuracy: ±0.1 mg/L (TN ≤ 1 mg/L), ±10% (TN > 1 mg/L)
Detection Method: Potassium permanganate digestion - UV spectrophotometry (compliant with national standard HJ 636-2012)
Automatic Calibration & Cleaning: Ensures measurement accuracy and easy maintenance
Data Storage Capacity: 50,000 historical records, supports real-time data upload
Display: 8-inch TFT color touchscreen
Dimensions & Weight: 420×600×240 mm, 17.5 kg; supports wall-mounted or cabinet installation