HANNA HI98121 Combo pH/ ORP Meter

HANNA HI98121 Combo pH/ ORP Meter is a waterproof meter that measures pH, ORP and temperature. The housing of this tester has been completely sealed against humidity and are designed to float.

Electrode replacement with the stainless steel round connector means there are no pins to bend or break during replacement.
When the cloth junction becomes clogged and response time is sluggish, simply pull out 3 mm (1/8”) to clear the clogging which will improve response time and stability.

exposed stainless steel temperature sensor on these models facilitates faster and more accurate temperature measurement.
Order Information:
HI 98121 (ORP/pH) is supplied with HI 73127 pH electrode, HI 73128 electrode removal tool, batteries and instructions.

Range    ORP    ±1000 mV
pH    -2.00 to 16.00 pH
Temperature    -5.0 to 60.0°C / 23.0 to 140.0°F
Resolution    ORP    1 mV
pH    0.01 pH
Temperature    0.1°C / 0.1°F
Accuracy    ORP    ±2 mV
pH    ±0.05 pH
Temperature    ±0.5°C / ±1°F
Calibration    ORP    factory calibrated
pH    automatic, one or two points with two sets of memorized buffers (pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18)
Temperature
Compensation         Automatic for pH readings
Electrode         HI 73127 replaceable pH electrode (included); fixed ORP sensor
Battery Type / Life         1.5V (4) / approximately 250 hours of continuous use; auto-off after 8 minutes of non-use
Environment         -5 to 50°C (23 to 122°F); RH max 100%
Dimensions         163 x 40 x 26 mm (6.4 x 1.6 x 1.0″)
Weight         100 g (3.5 oz.)