5.5KW Electric Digital Water Heater Thermostat for Swimming Pool, SPA & Hot Tub (Precision Thermostat) - ST series

Manual reset temperature control switch: If the temperature unexpectedly rises to 60, the temperature switch will cut power to the system. At that point you must cut off the main power supply, correct the fault and allow the temperature to return below normal before pressing the 'Reset' button to restart the heater. Unique control system: The ST series represents our newest generation with a proprietary control system. This advanced design replaces the traditional mechanical water flow sensor with a modern digital temperature sensor, improving temperature regulation and system responsiveness. Intelligent self-diagnose function: The controller continuously monitors the status of every heater component and reacts quickly to issues by showing a relevant hint message. On detecting a fault the heater shuts down immediately and displays an on-panel hint for the user or technician to identify the problem. Customer safety is treated as the highest priority.