PH Range : -2.00 to 16.00 pH PH Resolution : 0.01 pH PH Accuracy : ±0.02 pH PH Calibration : one or two-point calibration, two sets of standard buffers available (4.01, 7.01, 10.01 or NIST 4.01, 6.86, 9.18) PH Temperature Compensation : automatic from -5.0 to 105.0°C (23 to 221°F) Temp. Range : -5.0 to 105.0°C; 23.0 to 221.0°F Temp. Resolution : 0.1°C; 0.1°F Temp. Accuracy : ±0.5°C (up to 60°C), ±1.0°C (outside); ±1.0°F (up to 140°F), ±2.0°F (outside) Electrode : HI1414D/50 glass body, pre-amplified pH electrode with flat tip, internal temperature sensor, DIN connector and 1 m (3.3’) cable Battery Type / Life : 1.5V AAA (3) / approximately 1200 hours of continuous use
The Hanna Instruments Hi99181 is a durable, waterproof, and portable pH and temperature meter designed specifically for analysis of skin. Automatic calibration is performed at one or two points with two sets of buffers. All calibration and measurement readings are automatically compensated for temperature variations.