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.
The HI99181 uses the HI14143/50 glass body, amplified pH electrode that offers numerous features that improve pH testing for skin and surface measurements. The split-level LCD displays both pH and temperature readings, along with indicators for reading stability, battery percentage, and calibration instructions.