7-in-1 Water Quality Tester pH/EC/TDS/H2 ORP/Salinity for Aquariums and Marine Farming

Precise measurement of dissolved hydrogen (H₂): This tester detects molecular hydrogen concentrations in water with an ultra-precise measuring range of 0 to 2400 ppb (0.001 to 2400 ppm) and a resolution of 1 ppb — ideal for assessing the effectiveness of hydrogen-enriched waters that are beneficial for well-being and overall health. Comprehensive water quality analysis in 7 functions: pH (0.00–14.00), TDS (0–10,000 ppm), electrical conductivity EC (0–10,000 µS/cm / up to 400.0 mS/cm), redox potential ORP (±999 mV), salinity (0.01%–25.00%), hydrogen concentration H₂, and temperature (0.0–60.0 °C). High-readability backlit display: Clear digital screen with Permanent backlight and extended battery life — designed for comfortable reading even in low-light conditions, whether in the kitchen, laboratory, or field. Robust and waterproof: IP67: Shock-resistant ABS housing and fully waterproof (IP67 rating), perfectly suited for demanding daily use, including in humid environments or while on the go. Long battery life & ergonomic design: Operates on 4 standard batteries (not included); compact design (180 mm / 7.09 in), lightweight (185 g / 6.53 oz) for convenient and accurate use at any time. Package contents: 1 x 7-in-1 multifunction water tester, 1 x user manual in French (and other languages depending on availability). This product is sold by xiaosong on behalf of third parties. This is a compatible product. Thank you for your understanding and support.