The probe of temperature and humidity transmitter SL-101HFL is mainly composed of a temperature-sensitive resistor and a humidity-sensitive capacitor. The resistance value of the temperature-sensitive resistor is proportional to the temperature. The capacitance value of the humidity-sensitive capacitor is related to the surrounding humidity. The higher the humidity, the lower the capacitance value. The core components of the temperature and humidity transmitter are the silicon chip and the control circuit. The control circuit will read the changes in resistance and capacitance and the silicon chip will generate 0-5V or RS485 signals. The advantage of the transmitter is not consumed power and can still provide real-time and accurate temperature and humidity monitoring

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