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
 

Function: Portable COD analyzer for rapid chemical oxygen demand testing in water samples
Measurement Range & Accuracy: COD 5–2000 mg/L, indication error ≤ ±5%, repeatability ≤3%, anti-chlorine interference ≤2000 mg/L
Digestion & Temperature Control: Sealed catalytic digestion, PID automatic temperature control, digestion time 10 min, ±1°C accuracy, adjustable 1–9999 min
Optical System & Data: Cold light narrowband interference system, absorbance drift <0.002A/20min, stores up to 199 COD values with timestamp, USB connection for data export
Power & Portability: Host powered by 4 AA batteries, digester 220V/12V or car cigarette lighter, optional emergency battery, main unit 0.5 kg, digester 1 kg
Display & Design: Large LCD screen, molded ABS chassis, IP65 waterproof and dustproof, optional printing function
 

Measurement Range: 0.05–3.00 mg/L residual chlorine
Precision: ≤ ±0.05 mg/L (<1 mg/L), ≤ ±5% (≥1 mg/L)
Wavelength: 520 nm, LED light source
Operation: Intuitive display, simple operation, fast analysis with low reagent use
Portability: Compact (128×70×48 mm), lightweight (188 g), IP65 protection
Battery Life: Over 24 hours continuous use
Principle: DPD spectrophotometric method
 

Measurement Range: 0.1–5.00 mg/L chlorine dioxide
Accuracy: ≤ ±0.05 mg/L (<1 mg/L), ≤ ±5% (≥1 mg/L)
Wavelength: 520 nm, LED light source
Operation: Intuitive display, simple operation, fast analysis with low reagent use
Portability: Compact (128×70×48 mm), lightweight (188 g), IP65 protection
Battery Life: Over 24 hours continuous use
Principle: DPD photometric method, chlorine dioxide reacts with DPD to produce a red-colored solution
 

Measurement Range: 0.05–10.00 mg/L total residual chlorine
Accuracy: ≤ ±0.05 mg/L (<1 mg/L), ≤ ±5% (≥1 mg/L)
Wavelength: 520 nm, LED light source
Operation: Intuitive display, simple operation, fast analysis with low reagent use
Portability: Compact (128×70×48 mm), lightweight (188 g), IP65 protection
Battery Life: Over 24 hours continuous use
Principle: DPD spectrophotometric method, compliant with HJ586-2010 standard
 

Measurement Range: 0.00–10.00 mg/L residual chlorine
Accuracy: ≤ ±0.05 mg/L (<1 mg/L), ≤ ±5% (≥1 mg/L)
Wavelength: 520 nm, LED light source
Operation: Simple, intuitive display; fast analysis with low reagent use
Portability: Compact (128×70×48 mm), lightweight (188 g), IP65 protection
Battery Life: Over 24 hours continuous use
Principle: DPD spectrophotometric method
 

Measuring Range: 0.05–2.50 mg/L (ozone in water)
Accuracy: ≤±0.05 mg/L (<1.0 mg/L); ≤±5% (≥1.0 mg/L)
Principle: DPD photometric method, 520 nm LED light source
Battery Life: >24 hours continuous use
Protection: IP65 waterproof, portable lightweight design
Dimension & Weight: 128×70×48 mm, 188 g (with battery)
Operating Environment: 0–40°C, ≤90% RH (non-condensing)
 

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