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Pocket pH ORP meter

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Intended

  • Easy calibration
  • Auto-off function
  • Two-level LCD display
  • Battery type 4x1.5V or 3x1.5V
  • pH/ORP measurement

The waterproof pH meters (pH55 PRO, pH56 PRO, pH58 MAX, ORP57 PRO) are equipped with a two-level LCD display that, depending on the meter, shows the pH, temperature (ºC or F) or redox value. The meters have a stability indicator and a stop function for easy and accurate data reading. The pH58 MAX model allows simultaneous measurement of pH and redox. Calibration is automatic, 1 or 2 point with stored sets of reference buffers.

The pH51 and pH54 meters have a wood-tight housing and a replaceable electrode with a double connector, which also makes them suitable for applications such as wastewater treatment plants. Manual calibration extends battery life to 1,500 hours.

The modular design allows easy electrode and battery replacement.


Technical specifications:

Model pH55 PRO pH56 PRO pH58 MAX ORP57 PRO pH51 pH54
Range pH -2,0 to 16,0  -2,0 to 16,0  -2,0 to 16,0  - 0,0 to 14,0 0,0 to 14,0

°C

-5,0 to 60,0 -5,0 to 60,0 -5,0 to 60,0 -5,0 to 60,0 - -
ORP - - +/-1000 mV +/- 1000 mV - -
Resolution pH 0,1  0,01 0,01 - 0,1 0,01

°C

0,1 0,1 0,1 0,1 - -
ORP - - 1 mV 1 mV - -
Accuracy pH +/- 0,1  +/- 0,05 +/- 0,05 - +/- 0,1 +/- 0,1

°C

+/- 0,5 +/- 0,5 +/- 0,5 +/- 0,5 - -
ORP - - +/-1 mV +/-2mV - -
Temperature compensation auto auto auto - - -
Calibration pH auto, 1 or 2 points auto, 1 or 2 points auto, 1 or 2 points - manual, 1 or 2 points manual, 1 or 2 points
ORP - - Factory calibration Factory calibration - -
Sensor included Mi56P Mi56P Mi58P Mi57P MA73600 MA73600
Auto-off after 8 min of rest - -
Battery life approx. 300 h of use approx. 1500 h of use
Dimensions 200 x 38 165 x 30 x 30
Weight 100 g 80 g



Model Battery life
pH55 PRO approx. 300 hours of use
pH56 PRO approx. 300 hours of use
pH58 MAX approx. 300 hours of use
ORP57 PRO approx. 300 hours of use
pH51 approx. 1500 hours of use
pH54 approx. 1500 hours of use

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