Ensures accurate readings across 0-50°C environments, unaffected by water temperature changes Features a large digital screen for quick, easy to read acidity values without complex operations, powered by 4x1.5V button cells Measures acidity levels from 0.00 To 13.00 With 0.01 Resolution and ±0.01 Accuracy, ideal for testing various water sources like aquariums, drinking water, pools, and hydroponics Compact and lightweight ABS construction ( 18x5cm) for handheld use and easy storage during travel or fieldwork Supports 1 / 2 / 3 point calibration with automatic buffer recognition for easy setup and long term in acidity measurement, Manufacturer: Whoasyst