7-in-1 Waterproof Water Tester

Compact portable water quality tester measuring pH, TDS, EC, ORP, salinity, specific gravity (S.G.), and temperature. Dimensions: 183 × 37 × 37 mm; weight: 105 g. Constructed for durability with IP67 rating — dust-tight and protected against immersion in water up to 1 metre for 30 minutes. Features a clear 33 × 24 mm LCD display showing 4-digit readings with unit labels. Powered by 3 × LR44 batteries (not included). Operating temperature range: 0–60.0°C; humidity tolerance up to 100% RH. pH range: 0.01–14.00 (±0.05 accuracy, 0.01 resolution); EC: 0–10,000 µS/cm, 10.01–19.99 mS/cm, 20.1–400 mS/cm (±2%, 1 µS/cm or 0.1 mS/cm resolution); TDS: 0–10,000 ppm / 10.1–200.0 ppt (±2%, 1 ppm or 0.1 ppt resolution); salinity: 0.00–25.00% (±0.1% below 5.00%, ±1% above); ORP: –999 to +999 mV (±5 mV, 1 mV resolution); S.G.: 1.000–1.222; temperature: 0.1–60.0°C (±0.5°C, 0.1°C resolution). Includes replaceable electrode and English user manual. Designed for versatile on-site use — ideal for freshwater aquariums, marine tanks, RO system output checks, swimming pools, tap water verification, and seawater monitoring. Auto power-off after 5 minutes of inactivity preserves battery life.