Astral Rolachem ORP Probe & Sensor Reliable Sanitiser Control with Precise ORP Monitoring Maintain crystal-clear, sanitised pool water effortlessly with the Astral Rolachem ORP Probe & Sensor. Designed for seamless integration with Rolachem dosing systems, this sensor monitors the oxidation-reduction potential (ORP) of your pool water in real-time, ensuring your chlorine dosing remains accurate and consistent. Key Features: Real-Time ORP MonitoringAccurately measures sanitiser effectiveness, keeping your pool safe and clear. Built for DurabilityEngineered to perform reliably in demanding aquatic environments. Seamless CompatibilityDesigned to work directly with Astral’s Rolachem chemical dosing controllers. Supports Balanced Water ChemistryAutomates chlorine dosing for healthier water and reduced chemical waste. Perfect For: Pool owners using the Rolachem dosing system Residential and commercial pools seeking precise chlorine control Anyone looking to upgrade their automated water treatment setup Note: This is a replacement ORP sensor only. Doser unit sold separately. Need expert advice or installation support? Contact the team at The Pool Lab today.