Hanna® Spare pH Sensor For Hanna Testers

Make 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.