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Extech RE300: ExStik® ORP Meter

ORP meter with rugged flat surface ORP electrode and high resolution of 1mV

View Datasheet > RE300


Measures ORP/Redox from -999 to 999mV
Automatic electronic self calibration
Simulated analog bargraph displays change in ORP reading
High resolution of 1mV
Memory stores and recalls 15 readings and saves last calibrated value
Data validation indicators show user the reading is stabilized
Data Hold, Auto shut-off and low battery indication

Additional information

ORP (mV)

-999 to 999mV

Max Resolution


Basic Accuracy



15 readings

Dimensions/ Weight

1.4×6.8×1.6" (35.6×172.7×40.6mm)/ 3.8oz (110g)

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