ADWA AD31 | Waterproof Conductivity, TDS & Temperature Pocket Tester

The ADWA AD31 Waterproof Conductivity, TDS and Temperature Pocket Tester provides fast water-quality checks in laboratories, filtration systems, hydroponics, aquaculture and field inspections. Its compact format is suitable for users who need conductivity and dissolved-solids readings without carrying a full-size portable meter.

The tester measures conductivity from 0 to 3999 µS/cm, TDS from 0 to 2000 ppm and temperature from 0.0 to 60.0°C. Automatic temperature compensation corrects EC and TDS readings as sample temperature changes, while the user-selectable TDS factor and temperature coefficient help adapt the instrument to different water types. Automatic one-point calibration supports 1413 µS/cm, 1382 ppm or 1500 ppm standards. A dual-level LCD displays the water-quality value together with temperature, and the stability indicator helps users identify when the result is ready to record.

Measurement Tip: Rinse the probe with clean water and then with a small amount of the next sample to minimise cross-contamination. Wait until the stability symbol disappears before recording the result. The user-replaceable AD32P probe reduces long-term ownership cost. Buy ADWA AD31 from Kamadi Pakistan for convenient EC and TDS testing.

Pocket EC/TDS Tester Selection Guide

Choose the AD31 when you need a waterproof pocket tester for conductivity levels up to 3999 µS/cm and TDS values up to 2000 ppm. It is a practical choice for routine low-to-medium conductivity water testing. The package includes the replaceable AD32P probe, protective cap, 1413 µS/cm calibration solution sachet, four 1.5V batteries and a user manual.

Key Features

• Measures conductivity, TDS and temperature
  
• Waterproof housing sealed against humidity
  
• Automatic temperature compensation for EC and TDS
  
• Automatic one-point calibration with stability indication
  
• User-replaceable AD32P EC and temperature probe
  

Technical Specifications

• Model: AD31
  
• Product Type: Waterproof EC, TDS and Temperature Pocket Tester
  
• Conductivity Range: 0–3999 µS/cm
  
• TDS Range: 0–2000 ppm
  
• Temperature Range: 0.0–60.0°C / 32.0–140.0°F
  
• Resolution: 1 µS/cm / 1 ppm / 0.1°C
  
• Accuracy: ±2% full scale for EC/TDS; ±0.5°C for temperature
  
• Calibration: Automatic, one point
  
• TDS Factor / Temperature Coefficient: 0.45–1.00 / 0.0–2.4% per °C
  
• Probe / Power: Replaceable AD32P probe / four 1.5V batteries

Applications

• Drinking-water quality checks
  
• Reverse-osmosis and filtration monitoring
  
• Hydroponic nutrient-solution testing
  
• Aquariums and aquaculture systems
  
• Laboratory and field water analysis