HI98120 · HI98121 ORP and pH/ORP Testers • Automatic one or two-point pH calibration (HI98121) • Waterproof · Waterproof and designed to float • ATC · Automatic Temperature Compensation (HI98121) • HOLD feature · HOLD button to freeze readings on the display • Battery indicator · Battery life indicator at startup The HI98120 is a waterproof ORP and temperature meter, while the HI98121 measures pH, ORP, and temperature. The housing of these testers has been completely sealed against humidity and is designed to float. Electrode replacement with the stainless steel round connector means there are no pins to bend or break during replacement. HI73120 replaceable ORP cartridge for HI98120. HI73127 replaceable pH cartridge for HI98121. HI98121 HI98120 1 Testers and Monitors 1.34 | www.hannainst.com testers
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