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Hanna Instruments HI 98121 Combination pH/ORP/Temperature Waterproof Tester has been replaced with: Oakton WD-35650-10 ORPTestr 10 Oxidation Reduction Potential Meter, -9999 to 1000 mV

  • Waterproof and it floats!. Battery % Level at startup and stability indicator
  • HANNA's exclusive cartridge pH and ORP electrode. HOLD function
  • Extendable cloth pH junction
  • Automatic Temperature Compensation
  • Automatic calibration.
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Hanna Instruments HI98121 Shown

Product Information
Manual 283 KB PDF
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The Hanna Instruments HI 98121 Combination pH/ORP/Temperature Waterproof Tester 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.

The exposed stainless steel temperature sensor on these models facilitates faster and more accurate temperature measurement.

Ordering Information
Model Description Buy Online Price
HI98121  Hanna Instruments HI 98121 Combination pH/ORP/Temperature Waterproof Tester Not Available
Included Accessories
  • 1 - HI 73127 pH Electrode
  • 1 - HI 73128 Electrode Removal Tool
  • 4 - 1.5 V Batteries
  • 1 - Instructions
Included
Optional Accessories
HI73128 Hanna Instruments HI 73128 Tool for Replacing Probe Cartridges Not Available
Replacement Electrodes
HI73127 Hanna Instruments HI 73127 Spare tester Electrode Not Available
Calibration and Buffer Solutions
HI7004M Hanna Instruments HI 7004M pH 4.01 buffer solution @ 25°C, 0.23 Liter Bottles Not Available
HI7007M Hanna Instruments HI 7007M pH 7.01 buffer solution @ 25°C, 0.23 Liter Bottle Not Available
HI7010M Hanna Instruments HI 7010M pH 10.01 buffer solution @ 25°C, 0.23 Liter Bottle Not Available
HI7021M Hanna Instruments HI 7021M ORP Test Solution at 240 mV (@20°C), 230 mL bottle Not Available
HI7022M Hanna Instruments HI 7022M ORP Test Solution at 470 mV (@20°C), 230 mL bottle Not Available
HI70300L Hanna Instruments HI 70300L Storage solution for pH/ORP electrodes, 0.46 Liter Bottle Buy Now Sale $10.82
(Reg. $14.00)