Introduction - If you have any usage issues, please Google them yourself
The device' s function is real-time temperature monitoring and control. Temperature by the temperature sensor DS18B20 sample and convert the digital signal into the microcontroller, and with the set alarm temperature, the lower limit compared to information through the LCD display. Such as real-time temperature exceeds a set upper and lower limits, on the one hand by the LCD display and an audible alarm the other hand, automatic control relay (Relay) to open on or off to control the heat source on and off, achieve real-time temperature control.