ORP Meters

ORPscan20 Pocket ORP Tester

Multi-purpose pocket ORP tester with a BNC connector for easy connection to a variety of ORP electrodes, the tester is widely used in environmental and industrial fields, accuracy: 2 mV.

• Multi-purpose ORP tester contains relative and absolute millivolt measurement modes.
• 1 point offset calibration allows adjusting the displayed value to a known standard.
• Auto-read function senses and locks the measurement endpoint.
• Auto-power off effectively conserves battery life.
• Reset function automatically resumes all settings back to the factory defaults.

ORP Tester

• Chromate reduction
• Cyanide oxidation
• Swimming pool water
• Pulp bleaching
• Cooling towers
• Aquaculture
• Drinking water
• Other redox applications





-999 to 999 mV


1 mV


±2 mV


1 point

   Measurment Modes

Relative / Absolute mV

   Other Specifications

   Hold Function

Manual / Auto-read measurement endpoint

   Auto-Power Off

8 minutes after last key pressed

   Electrode Type

5 series ORP electrodes




Dual-line LCD (21 × 21 mm)

   Power Supply

2 × 1.5V AAA batteries

   Battery Life

Approximately 200 hours of continuous use

   Environmental Conditions

0 to 50°C / 32 to 122°F, relative humidity < 80%


175 × 40(Ø) mm


100 g

   Ordering Code

Tester Includes


501 ORP electrode

Solution storage bottles

Carrying case

Items Description
501 ORP Electrode For measuring samples with weak redox potential
502 ORP Electrode For measuring samples with strong redox potential
504 ORP Electrode For measuring the high temperature samples

   Ordering Code

Dimensions and Weights


28 × 8 × 25 cm, 1.5 kg