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 split-level LCD displays both pH and temperature readings, along with indicators for reading stability, battery percentage, and calibration instructions. The HI99181 uses the HI1414D/50 glass body, amplified pH electrode that offers numerous features that improve pH testing for skin and surface measurements.

Includes:

• (1) HI1414D/50 flat tipped pH/temperature probe
• (1) HI70004 pH 4.01 buffer solution sachet
• (1) HI70007 pH 7.01 buffer solution sachet,
• (2) HI700620 electrode cleaning and disinfection solution for skin residuals sachets
• (2) HI700621 electrode cleaning solution for skin grease and sebum sachets
• (3) 1.5V batteries
• (1) Instruction manual,
• (1) Hard carrying case.

Specifications:

• pH Range:  -2.00 to 16.00 pH
• pH Resolution:   0.01 pH
• pH Accuracy:    ±0.02 pH
• pH Calibration:    automatic, at one or two points with two sets of buffers (standard 4.01, 7.01,10.01 or NIST 4.01, 6.86, 9.18)
• Temperature Range:   -5.0 to 105.0°C / 23.0 to 221.0°F.
• Temperature Resolution:    0.1°C / 0.1°F.
• Temperature Accuracy:   ±0.5°C (up to 60°C); ±1.0°C (outside) / ±1°F (up to 140°F); ±2.0°F (outside)
• Temperature Compensation:    automatic from -5.0 to 105.0ºC (23 to 221ºF)
• Electrode/Probe:  HI1414D/50 pre-amplified pH probe with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included)
• Battery Type/Life:    1.5V (3) AAA / approximately 1200 hours of continuous use; auto-off after 8 minutes of non-use
• Environment:    0 to 50°C (32 to 122°F); RH max 100%.
• Dimensions:    152 x 58 x 30 mm (6.0 x 2.3 x 1.2”)
• Weight:  205 g (7.2 oz.)