HANNA HI99141 Portable pH Meter for Boiler and Cooling Towers (-2.00~ 16.00 pH)

Range    
+ pH: -2.00 to 16.00 pH
+ Temperature: -5.0 to 105.0°C / 23.0 to 221.0°F
Resolution    
+ pH: 0.01 pH
+ Temperature: 0.1°C / 0.1°F
Accuracy @ 20°C    
+ pH: ±0.02 pH
+ Temperature: ±0.5°C (up to 60°C), ±1.0°C (outside) / ±1.0°F (up to 140°F); ±2.0°F (outside)
pH Calibration: automatic one or two point calibration with two sets of memorized buffers (Standard 4.01, 7.01, 10.01 or NIST 4.01, 6.86, 9.18)
Temperature Compensation: Automatic, -5 to 105°C (23 to 221°F)
pH Electrode: HI 72911D titanium body, pre-amplified pH electrode with internal temperature sensor, DIN connector and 1 m  (included)
Battery Type / Life: 1.5V AAA (3) / approximately 1200 hours of continuous use. Auto-off after eight minutes of non-use
Environment: 0 to 50°C (32 to 122°F); RH max 100%
Dimensions: 152 x 58 x 30 mm 
Weight: 205g (7.2 oz.)
Ordering Information : HI99141 is supplied with HI72911D pH probe, HI70004 pH 4.01 buffer solution sachet, HI70007 pH 7.01 buffer solution sachet, HI700661 electrode cleaning solution sachets (2), batteries, instructions and hard carrying case.