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Spare pH Sensor for Hanna Testers
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Spare pH Sensor for Hanna Testers


The HI73127 spare pH sensor makes electrode replacement quick and easy. The spare pH sensor is designed as an easy-fit cartridge that locks into place, featuring two o-rings to maintain a watertight seal. With no pins to line up or that can break, this sensor is ideal for quick replacements.

  • Easy-to-replace.
  • Extend the life of your Hanna pH tester with a spare pH sensor.
  • Keep your pH measurements simple & accurate.
Spare pH Sensor for Hanna Testers
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