HANNA GroLine Spare pH Sensor for Hanna Testers

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 Effortless replacement — snap-in cartridge design saves time and prevents mishaps Watertight seal — dual o-rings ensure reliable field durability Durability-focused — compatible with key Hanna testers while safeguarding from damage Models supported — works with HI98129, HI98130, HI98127, HI98128, and HI98121 Ideal for field use — quick swaps keep your testing efficient and uninterrupted