FOR Universal TCN4S-24R Dual-Display PID Temperature Controller — Refrigerator / Water Heater / Boiler Replacement

Replacement temperature controller FOR Universal TCN4S-24R with PID control and dual-display readout. Built as a universal thermostat solution for refrigerators, water heaters and boilers, this controller offers PID regulation and a two-window display for setpoint and process temperature. Ideal for swapping into existing systems where a TCN4S-24R compatible PID thermostat is required.