KETOTEK Temperature Controller -30℃~300℃ Digital Thermostat with Sensor Probe 220V 30A 2 Relay Output Heating Cooling Control for Heater Cooler

Q: There is a way to calibrate when temperature gives error?

A: Yes, In normal working status, press SET for 3 seconds to enter into setting parameter mode. When display HC, press UP or DOWN button to switch codes to CA ( -7.0~7.0℃ )

Q: Why it does not turn off the light as setting ?

A: Please check if you set the value for PL(0~7 Min), if PL≠0, the display will flash, the cooler or heater only start to work after the time of PL.

Q: Why it only can be set in limited range, not as description -30~300℃

A: HS and LS can set the high and low limit of setting temperature: For example: if HS = +60, LS = -10, the setting temperature only can be set between -10~+60℃. So if you want to set a value beyond this range, please change HS and LS at first.

【High accuracy, wide temperature control range】This digital temperature controller is safe and energy saving (Power consumption: ≤3W) with wide temperature control range (-30℃~300℃) , high accuracy (Accuracy: ±1℃), Input: 2m NTC sensor, Output: one relay 30A/250VAC.

【Easy to connect and program】Connect this temperature controller to a power supply and the heating or cooling device, set start temperature and stop temperature, this temperature controller 220v can control the device to work as programmed. Also you can set delay time and low/high temperature limit for safe use.

【More functions】LED display. NTC 100k B3950 sensor probe. Supports temperature calibration, refrigerating control output delay protection. Alarm when temperature exceeds temperature limit(-30~300℃) or sensor error. All parameters set can be saved when power off. High and low temperature limits prevent others from setting the parameters incorrectly.

【Safety & Quality】The digital thermostat is made in flame resistant material with embedded structure, large LED screen display and the four-button design make it safer to use and easier to read and program.