The HI 98127 is a waterproof, portable pocket pH meter that "goes anywhere." It is designed to float if accidentally dropped into a tank, etc. The HI98127 features the HI73127 electrode, which is replaceable. The replacement is easy and literally takes 30 seconds!

Main benefits:

Automatic buffer recognition and calibration • Strong, replaceable electrodes • The placement of the temperature sensor next to the pH electrode ensures greater measurement accuracy and temperature compensation • Calibrate directly with Hanna Instruments buffer solution sachets • The Battery % indicator appears at startup, with a Battery Error Prevention System (BEPS) to support optimal operation.

• Range: -2.0 to 16.0 pH 
• pH Resolution: 0.1 pH 
• pH Accuracy: ±0.05 pH 
• Temperature Range: -5.0 to 60.0C / 23.0 to 140.0F Temperature Resolution: 0.1C / 0.1F 
• Temperature Accuracy: 0.5C /1F 
• Calibration: Automatic, at 1 or 2 points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) 
• Temperature Compensation: Automatic 
• Battery Type / Life: 1.5V (4) / approximately 300 hours of continuous use / Auto-off after 8 minutes of inactivity 
• Environmental Conditions: -5 to 50°C (23 to 122°F); RH max 100% 
• Dimensions: 163 x 40 x 26 mm Weight: 100 g
• Information: The HI98127 (pHep4) comes with the HI73127 pH electrode, HI73128 electrode removal tool, batteries, and instructions