HANNA GroLine Spare pH Sensor for Hanna Testers
Official Distributor
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Easy Returns
Extend the life of your Hanna pH tester quickly and easily with the HI73127 spare sensor. Designed as an easy-fit cartridge that simply locks into place, it features dual o-rings to maintain a secure, waterproof seal—no fragile pins or complicated alignment needed. Just pop in the new sensor, and you’re ready to get accurate pH readings again in seconds.
Key Features
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Effortless replacement — snap-in cartridge design saves time and prevents mishaps
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Watertight seal — dual o-rings ensure reliable field durability
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Durability-focused — compatible with key Hanna testers while safeguarding from damage
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Models supported — works with HI98129, HI98130, HI98127, HI98128, and HI98121
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Ideal for field use — quick swaps keep your testing efficient and uninterrupted
