KT8230 Digital Temperature Controller Thermostat 120VAC 30A -22~572℉ (-30~300℃) Heating & Cooling for Incubator Brooder Refrigerator Fermenter Greenhouse Reptile

Compact relay temperature controller covering a wide range: -22~572℉ / -30~300℃. The KT8230 uses a relay output (30A) rather than providing direct voltage, so an external power source must be connected to drive the load. Set the switching differential (1~80℃ / 1~120℉) to define when the controller turns the load on or off — it functions as a precise on/off switch with 1℉ accuracy. Ideal for high-power applications such as incubators, brooders, refrigerators, fermenters, greenhouses, and reptile enclosures. Includes delay-start capability and temperature correction features; if a delay time (PL: 0~7min) other than 0 is configured, the heater and cooler will postpone operation accordingly. You can calibrate readings within -30.0℉~30.0℉ / -7℃~7℃ to correct sensor offset. Safety protections alert you: the unit sounds an alarm for temperature-limit breaches or sensor errors. Adjustable low (LS) and high (HS) temperature limits let you constrain the operating range. Settings are retained after power loss or restart, so no reconfiguration is required following outages. Supplied with a 2m NTC sensor for flexible placement and easy home or hobby use.