Extech RE300 ExStik ORP Waterproof Meter

  • Measures ORP from -999 to 999mV
  • Waterproof (IP57) submersible design
  • Stores and recalls 15 readings and saves last calibrated values
More Info
In Stock - Available Next Day

Extech RE300 ExStik ORP Waterproof Meter

The Extech ExStik RE300 is the World’s first handheld ORP meter used for obtaining oxidation reduction potential (ORP) measurements inside liquids, semi-solids and solids.

The RE300 features a platinum flat surface electrode with a built in reference, allowing for accurate measurements of potential difference (-999 to 999mV) within a sample. ORP measurements are displayed on an LCD screen as both a numerical reading and an analogue bar graph for clarity. Furthermore, up to 15 samples can be stored sequentially within the RE300’s internal memory for download at a later date.

Additional accessories are also available for the RE300; flexible Electrode extension cables for remote measurements, a weighted base for submersible operation and interchangeable electrodes for Chlorine and pH measurement.  

Key Features

  • Measures ORP from -999 to 999mV
  • Automatic electronic self calibration
  • Simulated analogue bar graph displays change in ORP reading
  • Memory stores and recalls 15 readings and saves last calibrated value
  • Data validation indicators show user the reading is stabilized
  • Large 3-1/2 digit (2000 count) Digital display with bar graph
  • Data Hold, Auto shut-off and low battery indication
  • Easy to replace electrode module is interchangeable with pH and chlorine ExStik® modules; (built in chip automatically recognizes the type of probe plugged in for specific measurements)
  • Waterproof (IP57) design floats in water and protects the meter in wet environment

What's In The Box?

  • RE300 Exstik ORP Waterproof Meter
  • Protective Sensor Cap
  • Sample Cup
  • Four 3V CR-2032 Batteries
  • Neckstrap
  • Orp (mV) – 999 to 999mV
  • Resolution – 1mV
  • Accuracy - ±4mV
  • Power – four SR44W button batteries
  • Dimensions – 1.4 x 6.8 x 1.6” (35.6 x 172.7 x 40.6mm)
  • Weight – 3.85oz (110g)
Label Type Size Download
pdf RE300 pdf 105.7 KB Download