PH-9086L Soil Waterproof Pen-Type PH, EC & Temperature 3-in-1 Tester Model PH-9086L Measuring Range PH 0.00～14.00PH EC 0.00~19.9mS/cm Temp 0～50℃ Resolution PH 0.01PH EC 0.1mS/cm Temp 0.1℃ Accuracy PH ±0.02PH EC ±2%FS Temp ±1℃ Automatic Temperature Compensation 0℃～50℃ Battery 3×1.5V (AAA Batteries) Operating Temperature 0℃～50℃ Calibration Automatic 2-Point Calibration Dimensions 250 x 48 x 36 mm Weight 142g Product Description: Smart Pen-type 3-in-1 Tester, capable of measuring water and wettable solids such as soil, dough, milk, fruits, and meat. Powered by three high-capacity AAA batteries to avoid frequent recalibration. Two-button calibration with automatic recognition of pH standard buffer solutions. Automatic temperature compensation ensures accurate measurement across the entire range. Auto power-off function effectively conserves battery energy. Replaceable electrode reduces maintenance and usage costs. Fully waterproof design provides complete protection for the device in harsh environments.