The Hanna Instruments pHEP 4 comes complete with protective cap, electrode removal tool, batteries and instructions. Battery lasts for approximately 300 hours and features an auto shut off after 8 minutes of non-use. Electrode has stainless steel round connector which means there are no pins to bend or break during replacement.The pHEP 4 includes a dual-level LCD, battery level indicator, BEPS, replaceable pH electrode cartridge, stability indicator, automatic shut-off, electrode removal tool, and automatic calibration?all in a floating, waterproof casing. It is ideal for users who require the greatest accuracy and features while staying economical.

Waterproof and designed to float Automatic temperature compensation Automatic calibration Tactile grip casings HOLD function that freezes reading on the display to allow recording of measurement Automatic shut-off after 8 minutes of non-use Efficient two button operation Temperature in ?C or ?F pH range is from -2.0 to 16.0 pH BEPS (Battery Error Prevention System) Part Number: HI98127 Battery percentage displayed at startup Color: Red Package dimensions (L x W x H): 8.2 x 2.7 x 1.3 inches Weight: 0.3 pounds Manufacturer warranty: 2-year warranty