Home Paramters ORP ORP5 Premium pocket ORP measuring device

ORP5 Premium pocket ORP measuring device


The Apera Instruments ORP5 ORP meter is easy to use and perfect for quick and accurate redox potential measurements. The platinum sensor is interchangeable and compatible with the Apera Instruments PH60, PH60S and PH60F pH meters.

  • Exchangeable platinum probe ORP5-E
  • Easy calibration with automatic buffer recognition at the push of a button
  • Large, bright LCD with simultaneous temperature display
  • Set the heads-up function, minimum and maximum values ​​yourself
  • 3 background colors: blue for the measurement mode, green for the calibration mode and red for the heads-up function warning
  • Automatic temperature compensation (ATC) (in the range 0-50 ° C)
  • Complete set incl. Calibration solutions, storage solution, batteries and lanyard in a practical carrying case

The Apera Instruments ORP5 ORP measuring device has a 2-year manufacturer’s guarantee (6 months on the ORP sensor).

Technical specifications


Measuring range ±1000 mV
resolution 1 mV
accuracy ±0,2 % F.S


Measuring range 0 to 50 °C
resolution 0,1 °C
accuracy ±0,5 °C


Power supply 4 × AAA batteries
Operating time upt to 2000 h
Housing protection class IP67 (waterproof and floatable)
Dimensions 40 × 40 × 178 mm (with case 255 × 210 × 50 mm)
Weight 133 g (with case 700 g)

scope of delivery

A complete set contains:

  • ORP5 ORP measuring device
  • Calibration solution (222 mV / 50 ml)
  • 1 calibration vial
  • 3M KCL electrode storage solution
  • Lanyard
  • Carrying case


ORP5 (515 Kb) [Download]

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