The PH55 Replacement Probe is for the Milwaukee pH55 pH Tester Pen.  It’s cheaper and more environmentally friendly to replace the probe rather than the entire pH testing pen. Milwaukee offers affordable pH Probe replacements to keep your pH pen testing accurately!

The Milwaukee PH55 Tester Pen is a waterproof pH tester (using the IP67). The PH55 includes a large, dual-level LCD that displays pH and temperature (°C or °F). The large display shows readings in an extended range from -2.0 to 16.0 pH and simultaneously shows temperature from -5.0 to 105.0°C or 23.0 to 221.0°F. PH55 has a stability indicator and hold function that freezes the display for easy and accurate recording.

The large display also has graphic symbols to guide you through all operations. Complete with a temperature probe for faster and more precise temperature measurement it compensates automatically for temperature. Calibration is made automatically in 1 or 2 points with memorized standard and NIST buffer sets. Auto power OFF saves battery power after non-use. The double-junction electrode can be replaced in a very fast and simple way. The modular design allows easy electrode and battery replacement.

Product Features

• pH electrode with built-in temperature sensor (Mi56P)
• pH range: -2.0 to 16.0 pH
• Temperature range: -5.0 to 60.0°C (23.0 to 140.0°F)
• Automatic calibration, 1 or 2 points with 2 sets of memorized buffers
• Temperature compensation automatic, from -5 to 60°C
• Automatic shut-off after 8 minutes of non-use
• Battery type 4 x 1.5V; IEC LR44, A76 (included)
• Battery provides approximately 300 hours of use