Pocket pH and ORP (Redox) Tester

Waterproof combination testers
Pocket, portable and precise

Offering users a choice of ORP/Redox measurement combinations,
these two testers are popular options for operators carrying out spot
checks or testing on location.
Designed for use out in the field and in murky conditions,
the meters are sealed against humidity,
float in water and have a bright green casing making them
easily visible in low light levels.

• Dual level LCD screen
• Displays simultaneous readings
• Automatic temperature compensation
• Automatic calibration (HI 98121 only)
• HOLD function freezes readings for ease of recording
• Floating waterproof casing helps prevent accidental loss of meter during testing in difficult conditions
• Battery % level at start up and stability indicator helps ensure tester is in optimum working order
• Cartridge electrode – exclusive to Hanna
• Electrode replacement with stainless steel round connector means there are no pins to bend or break during replacement
• Exposed stainless steel temperature sensor facilitates faster and more accurate temperature measurement
• Combination pH and Redox / ORP electrode (HI 98121 only)

  Supplied with:

  • HI 98121 (ORP/Redox & pH)
  • HI 73127 pH electrode
  • HI 73128 electrode removal tool
  • Batteries & instructions

  Technical Data
  Range	-2.00 to 16.00pH and ± 1000mV ORP and -5 to +60°C
  Resolution	0.01pH and 1mV ORP and 0.1°C
  Accuracy	Ûª.05pH and ± 2mV and Ûª.5°C
  Calibration	Automatic at 1 or 2 points with 2 sets of memorised pH buffers
  Battery Type/Life	4 x 1.5volt giving approx 700 hours continuous use
  Environment	0 to 50°C (32 to 122°F); RH max 95%
  Dimensions	163 x 40 x 28mm,
  Weight	100 g