Milwaukee MI56P – Replacement Electrode for pH55 / pH56 Testers
The Milwaukee MI56P is an original replacement electrode designed for the Milwaukee pH55 and pH56 handheld testers. This probe combines both pH and temperature measurement functions in a single sensor, ensuring fast, accurate and stable readings. It restores full performance to devices where the previous electrode has become worn, slow or difficult to calibrate. The probe is simple to install – it slides into the meter’s connector and is secured with a locking ring.
The MI56P electrode is suitable for testing aqueous solutions, nutrient mixes, hydroponic systems, aquariums and general water quality applications. It supports automatic temperature compensation (ATC) when used with compatible Milwaukee testers. Regular replacement is recommended when measurements become unstable or calibration issues occur.
Technical Specifications
Electrode type: pH probe with built-in temperature sensor
Compatibility: Milwaukee pH-55 and pH-56 testers
Functions: pH measurement and temperature measurement (ATC)
pH measurement range*: 0.0 – 14.0 pH
pH resolution*: 0.1 pH
pH accuracy*: ±0.1 pH
Installation: slide-in probe with locking ring
Intended use: aqueous solutions, nutrient solutions, hydroponics, aquariums, water testing
Maintenance: store in KCl solution, calibrate regularly, prevent the sensing tip from drying out
*Range, accuracy and resolution depend on the specifications of the pH55/pH56 testers used with this electrode.
