ITEM NAME:Thermostat Temperature Sensor LCD Digital NTC 10K B3950 Relay Controller HGJ Descriptio n Specifications.Temperature Sensor:NTC-10K B3950. High temperature buzzer alarm;. Thermostat Temperature Sensor. Work status indicator;. ALA ’: Set high temperature alarm. LCD display;. Test temperature: -50~110℃. The system starts timing 'T' when a normal heating or cooling operation is completed.The system will begin the next round of heating or cooling only after 'T'>'OPH'.