The HI98108 pHep®+ Pocket pH Tester offers precise pH measurement (0.01 pH resolution) with automatic temperature compensation from 0 to 50°C. Featuring a compact waterproof design, large multi-level LCD, and a robust measurement range (0.00–14.00 pH) with ±0.2 pH accuracy. Simple two-button operation and automatic calibration up to three points using standard buffers (pH 4.01, 7.01, 10.01). Battery life reaches up to 1000 hours with clear indicators for stability and battery level.