HI 991401
Range pH 0.00 to 14.00
Temperature 0 to 60.0°C or 32.0 to 140.0°F
Resolution pH 0.1
Temperature 0.1°C or 0.1°F
Accuracy (@20°C/68°F) pH ±0.1
Temperature ±0.5°C or ±1°F
Typical EMC Deviation pH ±0.1
Temperature ±1°C or ±2°F
pH Electrode HI 1293D (included)
pH Calibration Automatic 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, 0 to 50°C
Power Supply External 12 VDC (included)
Environment 0 to 50°C (32 to 122°F); RH 100%
Dimensions 160 x 105 x 31 mm
(6.2 x 4.1 x 1.2”)
Weight 190 g (6.7 oz.)

HI 991401 is supplied complete with HI 1293D pH electrode, HI 1294 temperature probe (fixed), pH 4 and 7 buffers (20
mL each), 12 VDC adapter and instructions.