Rola-Chem 550135 Probe Only

Precision sensing that keeps your pool chemistry on target

The Rola-Chem 550135 Probe Only is a replacement sensing probe for Rola-Chem automated water-chemistry controllers. It provides the essential sensing element the controller relies on to monitor water chemistry and determine dosing actions. This probe is designed for pool and spa installations and is a direct replacement for the original sensor in compatible Rola-Chem systems.

Construction, Compatibility and Integration

Built for wet environments, the probe features a sealed sensing element and corrosion-resistant housing designed to withstand chlorine, bromine, and other sanitizers commonly used in pool and spa water. It connects to Rola-Chem controllers via the standard sensor interface used by the 550-series lineup, enabling a straightforward swap for a degraded or failed probe. Ideal for routine service, the probe should be installed with the controller powered off and the sensor port clean. This is a dedicated replacement part intended to work with compatible Rola-Chem controllers and does not include the controller itself.

Ideal For

• System compatibility: Rola-Chem automated controllers that support the 550135 probe interface in pool and spa systems.
• Replacement or maintenance context: Replaces a worn or failed sensing probe to restore automatic dosing accuracy.
• Installation or configuration context: Direct plug-in replacement in the controller's sensor port for minimal downtime.
• Performance outcome: Maintains accurate water parameter readings to support reliable chemical dosing.

Key Features

• Replacement probe designed for Rola-Chem control systems (550135) with a standard sensor interface.
• Sealed sensing element suitable for submersion in pool and spa water.
• Corrosion-resistant housing engineered for chlorine and bromine environments.
• Plug-in design for quick service and maintainable dosing system.
• Direct replacement that preserves controller calibration and data integrity.

Rola-Chem is a trusted name in pool and spa chemistry automation, known for durable sensors and reliable dosing components that integrate seamlessly with automated controllers to help owners maintain balanced water with minimal effort.