WQM-546 Multi-Parameter Water Quality Tester – UV Absorbance for COD/TOC/UV275, EC/TDS/Salinity/GH/S.G./Temp, Intelligent 4-Color Score, Auto Temp Compensation – for Tap, Purified, Ground, Seawater & Aquaculture

This advanced water quality tester  give you a complete picture of your water. The UV absorbance method measures COD, TOC, and UV275, while electrical conductivity calculates TDS, EC, salinity, general hardness, specific gravity and temperature. The device features an intelligent scoring system that changes the LCD backlight to one of four colors—Excellent, Good, Average, or Poor—so you can instantly understand your water quality at a glance.
Perfect for homeowners testing drinking water, well owners monitoring groundwater, aquarists managing saltwater tanks, or anyone who needs reliable water quality insights without leaving home.

Features:

• 9-in-1 compact pen type style tester
• Smart water quality scoring as Excellent, Good, Average or Poor
• Intuitive color-coded backlight indicator
• Simple operation, user friendly device with just a press of a button
• With temperature compensation for accurate, stable results
• High-sensitivity probe
• Easy calibration procedure

Specifications:

• Measurement Object: Tap water, purified water, bottled water, ground water, surface water (non-sewage), Seawater, aquaculture, etc.
• Measurement Parameters / Range / Resolution:
  • COD (Chemical Oxygen Demand): 0-100mg/L; 0.01mg/L
    
  • TOC (Total Organic Carbon): 0-100mg/L; 0.01mg/L
  • UV275 (Ultraviolet Absorption Value): 0-1.0au/cm; 0.001au/cm
  • TDS (Total Dissolved Solids): 0-2000ppm; 1ppm
  • EC (Electrical Conductivity): 0-4000us/cm; 1us/cm
  • SAL (Salinity): 0-26%; 0.01%
  • GH (Hardness): 0-1000ppm; 1ppm
  • S.G. (Specific Gravity): 0.9800-1.2000; 0.0001
  • Temperature: 0-50℃; 0.1℃ (°C  Only)
• Accuracy (H is the standard value)
  • COD: 0-5mg/L:±0.5mg/L; 5-100mg/L:±10%H
  • TOC: 0-5mg/L: ±0.5mg/L; 5-100mg/L: ±10%H
  • UV275: 0-0.1au/cm: ±0.01au/cm; 0.1-1.0au/cm: ±10%H
  • TDS: 0-100ppm：±5ppm; 100-2000ppm：±5%H
  • Electrical conductivity: 0-200us/cm：±10us/cm, 200-4000us/cm：±5%H
  • SAL: 0-5%: ±0.25%; 5-15%: ±5%H; 15-26%: ±10%H
  • Temperature: ±2℃
• Display 240*135 1.14 inch TFT color screen
• Power Supply 2 AAA alkaline dry batteries
• Dimension: 157 x 37 x 14mm
• Weight:  approx. 68g
• Working Temperature Range: 0~50℃
• Storage Temperature Range: -10~60℃; 0~85%RH（no condensation）
• Supply Voltage: DC3V
• Operating Current: 20mA
• Operating Power Consumption: 60mW

Set Includes:

• 1 x Water Quality Tester
• 2 x AAA battery
• English Instruction Manual
• Standard Factory Packaging