ORP485 – Electrochemical Probe for Measuring Redox Potential

The ORP485 is a rugged electrochemical probe designed to measure redox (ORP) potential in various water applications. Thanks to its integrated electronics and galvanic isolation, it is ready for connection to data loggers and control systems with an RS485/Modbus RTU interface.

Oxidation-reduction potential (ORP) measurement
RS485 digital output with Modbus RTU protocol
Galvanically isolated measurement and communication circuits
Integrated electrode with a platinum disc
Self-cleaning electrode design for a stable signal
Easy integration into measurement and monitoring systems

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Description

The ORP485 probe combines a measuring electrode and electronics in a compact housing that contains a platinum measuring electrode and a silver chloride reference electrode separated by a diaphragm. Galvanically isolated measurement and communication circuits ensure a stable and accurate signal free from the influence of interfering potentials. The probe allows for redox potential measurements in the range of −2000 to +2000 mV and can simultaneously provide temperature data via a second channel. :contentReference[oaicite:2]{index=2}

Applications

For precise measurement of the redox potential of water in industrial applications, wastewater treatment plants, environmental monitoring, and laboratory applications with RS485 connectivity.

Technical specifications

Technical Specifications	ORP485 Probes
Measured Quantity	Oxidation-Reduction Potential (ORP)
Output Signal	RS485 / Modbus RTU
ORP Measurement Range	−2000 mV to +2000 mV
ORP Accuracy	± 2 mV
Temperature Measurement Range	−5 °C to +60 °C
Temperature Accuracy	± 0.7 °C
Supply Voltage	5…24 V DC
Current Consumption	< 20 mA
Galvanic isolation	Yes, > 500 V
Dimensions (length × diameter)	115 mm × 40 mm
Mounting threads	G 3/4″
Housing material	POM, IP68 rating
Weight	approx. 150 g
Cable	PUR, 4×0.25, length depending on version

Downloads

Price List Cenik 2026 V101 Voda A4 Datasheet E2 0 Datasheet H7 0

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