7-Function Waterproof Water Meter

All-in-one portable water tester engineered for UK and EU field use: measures pH, TDS, EC, ORP, salinity, specific gravity (S.G.), and temperature. Compact form factor (183 × 37 × 37 mm), lightweight (105 g), with IP67-rated housing for dust and short-term water immersion. Clear 33 × 24 mm LCD displays 4-digit values with automatic unit labelling. Operates on 3 × LR44 batteries (not supplied). Supports ambient temperatures from 0–60.0°C and humidity up to 100% RH. Key performance specs: pH 0.01–14.00 (±0.05, 0.01 res); EC 0–400 mS/cm across three ranges (±2%, 1 µS/cm or 0.1 mS/cm res); TDS 0–10,000 ppm / 10.1–200.0 ppt (±2%, 1 ppm or 0.1 ppt res); salinity 0.00–25.00% (±0.1% up to 5.00%, ±1% above); ORP –999 to +999 mV (±5 mV, 1 mV res); S.G. 1.000–1.222; temperature 0.1–60.0°C (±0.5°C, 0.1°C res). Includes replaceable electrode and English instruction manual. Tailored for practical applications: verifying tap water safety, monitoring RO filter performance, maintaining stable aquarium conditions (fresh and marine), assessing swimming pool balance, and validating seawater composition — all with consistent, traceable results.