• PH55 Tester Pen MILWAUKEE


The PH55 Tester by MILWAUKEE, is a waterproof pH tester  (using the IP67) with large dual-level LCD that displays pH and temperature (°C or °F) with a removable/replaceable probe.  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.  It has 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
  • Automatic temperature compensation
  • Removable/replaceable probe $75
  • Fully waterproof
  • Much faster measurements than colour metric test kits
  • Accurate readings



Available on back-order

Size guide


SKU: MWPH55T Categories: ,