pH/ORP/Temperature Combo Tester - HI98121

SKU: HI98121

Ships within 1-2 Business Days

The HI98121 pH/ORP/Temperature tester is a reliable, waterproof tester that ensures quick and easy measurements of both pH and ORP with 0.01 pH resolution and temperature compensation. This tester is used to monitor pH and chlorine for many applications including swimming pools, spas, food sanitization, plating baths, wastewater treatment, and cooling tower water treatment.

  • ±0.05 pH / ±2 mV pH Accuracy
  • Replaceable pH Electrode 
  • Automatic Two-Point pH Calibration


Waterproof casing designed to float if dropped in water

Automatic Temperature Compensation, displays temperature in °C or °F

HOLD button for easier measurement recording

Two-button Operation

Large LCD displays stability indicator, low-battery indicator, and calibration tags

Automatic calibration to one or two points

Slim, Ergonomic Design that fits comfortably in the hand or pocket

More Information
SKU HI98121
Product Name pH/ORP/Temperature Combo Tester - HI98121
Quote Required No
pH Range -2.00 to 16.00 pH
pH Resolution 0.01 pH
pH Accuracy ±0.05 pH
pH Calibration automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18)
pH Temperature Compensation automatic for pH readings
ORP Range ±1000 mV
ORP Resolution 1 mV
ORP Accuracy ±2 mV
Temperature Range -5.0 to 60.0°C / 23.0 to 140.0°F
Temperature Resolution 0.1°C / 0.1°F
Temperature Accuracy ±0.5°C /±1°F
pH Electrode HI73127 replaceable pH electrode (included)
ORP Electrode fixed ORP sensor
Automatic Shut-Off after 8 minutes non-use
Battery Type/Life 1.5V (4) / approximately 250 hours of continuous 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.)
Ordering Information HI98121 (ORP/pH) is supplied with HI73127 pH electrode, HI73128 electrode removal tool, batteries and instructions.
Write Your Own Review
You're reviewing:pH/ORP/Temperature Combo Tester - HI98121
Your Rating
We found other products you might like!