Hanna pH Meter/Temperature -2 to 16 -Hanna 98128

Range pH -2.00 to 16.00 pH Range Temperature -5.0 to 60.0°C / 23.0 to 140.0°F Resolution pH 0.01 pH Resolution Temperature 0.1°C / 0.1°F Accuracy pH ±0.05 pH Accuracy Temperature ±0.5°C / ±1°F pH Calibration automatic, at 1 or 2 points with 2 sets of memorized buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) Temperature Compensation automatic Battery Type / Life 4 x 1.5V with BEPS / approx. 300 hours of continuous use; auto-off after 8 minutes of non-use Environment -5 to 50°C (23 to 122°F); RH max 100% Dimensions 163 x 40 x 26 mm (6.4 x 1.6 x 1.0") Weight 100 g (3.5 oz.)