Hannah pHep 4

When Hanna instruments introduced its first version of the pHep (pH electronic paper) in 1986, It revolutionized the standards in ph measurement. The new pHep includes all of the features you have asked for and more!

Dual-level LCD

Battery level indicator

Replacable pH electrode cartridge

Stability indicator

Automatic shutoff

Automatic calibration

Waterproof casing

100% buoyancy

$89.95