Overview
The Cole-Parmer 1929857-010B ORP sensor is a precision electrode for measuring oxidation-reduction potential in aqueous solutions. The 3/4″ body design fits standard process equipment and water analysis systems. This double-junction configuration provides stable, repeatable measurements across a wide range of applications, from water treatment to laboratory analysis.
Key Features
- 3/4″ body diameter fits standard process equipment and sensor housings
- Double-junction design reduces contamination and extends electrode life
- Suitable for both submersible and in-line measurement configurations
- Durable construction for industrial and laboratory environments
- Compatible with Cole-Parmer pH/ORP controllers and third-party analyzers
Technical Specifications
Verify exact specifications (impedance, reference type, cable length, connector type) with the manufacturer datasheet or Cole-Parmer technical support before installation.
Typical Applications
- Water quality monitoring and testing
- Industrial process control (chemical, beverage, pharmaceutical)
- Wastewater treatment systems
- Laboratory redox potential measurement
- Pool and spa chemistry control
Compatibility & Replacements
Compatible With
- Cole-Parmer pH/ORP 300 controller
- Cole-Parmer pH/ORP analyzers and meters
- Standard process measurement systems accepting 3/4″ sensors
- Systems with BNC or DIN connectors (verify connector type)
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Confirm exact connector type, cable length, and reference configuration with Cole-Parmer technical support.
Works With
- Cole-Parmer water analysis software and controllers
- SCADA and process control systems supporting analog ORP inputs
- Laboratory information management systems (LIMS)
- Standard 4–20 mA transmitters






