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Milwaukee MI105 Professional Portable pH/Temperature Meter | Cambridge Environmental

SKU: 9139-MI105~ea

SKU: 9139-MI105~ea

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The compact Milwaukee Mi105 is an extended range pH and temperature meter complete with a sturdy carrying case.  It’s useful to measure the pH level of substances such as water, beer, food, or wine in industrial, laboratory, and food functions.

The electrode has a built-in temperature sensor and amplifier which prevents electrical interference. The full-size display shows readings - range extending from -2.00 to 16.00 pH - while at the same time, displays temperatures from -5.0 to 105.0°C (23 to 221°F).  It also has a stability indicator and a ‘hold’ feature which pauses the display to enable accurate recording. The battery life of the meter ensures over 500 hours of use. When turned ON, it executes a self-check and presents the remaining battery level. Calibration is implemented automatically at 1 or 2 points.  This meter uses standard or NIST buffers.

Product features

  • Portable pH and temperature meter
  • Automatic Temperature Compensation (ATC) for exact readings in changeable climate conditions
  • Automatic calibration at one or two points for custom calibration
  • LCD screen shows the current measurement and temperature at the same time
  • Graphic symbols to aid you with all operations
  • Combination amplified pH electrode with internal temperature sensor and Bayonet Neill-Concelman (BNC) and Radio Corporation of America (RCA) connectors
  • Auto power-off feature turns the meter off after eight minutes of idleness


  • Qty 1 - MA914BR1 pH, Temp Amplified Probe with 1 meter Cable
  • Qty 1 - Rugged Carrying Case
  • Qty 1 - 20 mL pH 4.01 Calibration Solution Sachet
  • Qty 1 - 20 mL pH 7.01 Calibration Solution Sachet
  • Qty 2 - 20 mL Electrode Cleaning Solution Sachets
  • Qty 1 - 9V Battery
  • Qty 1 - Instruction Manual


pH Range

-2.00 to 16.00 pH

Temp Range

-5.0 to 105.0°C / 23.0 to 221.0°F

pH Resolution

0.01 pH

Temp Resolution

0.1 °C / 0.1 °F

pH Accuracy

±0.02 pH

Temp Accuracy

±0.5°C up to 60°C; ±1°C outside / ±1°F up to140°F; ±2°F outside

pH Typical EMC Deviation

±0.02 pH

Temp Typical EMC Deviation

±0.2°C / ±0.4°F

Temperature Compensation

automatic, from -5 to 80°C

pH Calibration

automatic, 1 or 2 points


MA914BR/1, amplified pH/temperature probe (included)


0 to 50°C / 32 to 122°F; max RH 100%

Battery Type

1 x 9V (included)

Battery Life

approx. 500 hours of use


after 8 minutes of non-use


200 × 85 × 50 mm


260 g

Download(s) Available: MI105 Literature
Download(s) Available: MI105 Manual