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Milwaukee Instruments

ORP Waterproof Dual Level Tester

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IP65 Waterproof pH tester with Large dual-level LCD that displays ORP and temperature (°C or °F). The large display shows readings from -1000 to +1000 (with a resolution of 1 mV) and simultaneously shows temperature from -5.0 to 105.0°C or 23.0 to 221.0°F. ORP57 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. 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.

ORP57 is supplied complete with protective cap, carton box, batteries and instructions.

mV Range±1000 mV
Temp Range-5.0 to 60.0°C / 23.0 to 140.0°F
mV Resolution1 mV
Temp Resolution0.1°C / 0.1°F
mV Accuracy±2 mV
Temp Accuracy±0.5°C / ±1°F
pH Typical EMC Deviation±2 mV
mV Typical EMC Deviation±0.3°C / ±0.6°F
Redox calibrationfactory calibrated
ProbeMi57P (replaceable)
Environment0 to 50°C / 32 to 122°F; max RH 100%
Battery Type4 x 1.5V; IEC LR44, A76 (included)
Battery Lifeapprox. 300 hours of use
Auto-offafter 8 minutes of non-use
Dimensions200 × dia 38 mm
Weight100 g

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Thomas No.
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Pocket-Size ORP / Temperature Meter

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Thomas No.
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Replacement Electrode for ORP57

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