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Related Tutorials
How to Interface the HR202L Humidity Sensor with Arduino
The HR202L is a versatile and powerful sensor that measures humidity and temperature. It utilizes a capacitive humidity sensor to accurately measure the relative humidity in the environment. With its high sensitivity and fast response time, it is ideal for a wide range of applications such as weather monitoring, greenhouse automation, and HVAC systems.
This sensor consists of two electrodes that are separated by a moisture-sensitive dielectric material. When the humidity in the environment changes, the dielectric constant of the material also changes and causes the capacitance to change.
The sensor outputs analog signal, providing real-time data for analysis and control.
Specificatoins of HR202L Humidity Resistance Sensor Module With Case:
- Operating range: humidity(20-95%RH) temperature(0-60Celsius)
- Power supply: 1.5V AC(Max sine)
- Operating frequency: 500Hz-2kHz
- Rated power: 0.2mW(Max sine)
- Central value: 31kΩ(at 25Celsius, 1kHz ,1V AC, 60%RH)
- Impedance range: 19.8-50.2kΩ (at 25Celsius, 1kHz ,1V AC, 60%RH)
- Accuracy: +-5%RH
- Hysteresis: +-1%RH
- Long-term stability: +-1%RH/year
- Response time: <10s
- Dimensions: with case 12*15*5mm, without case 8*10*0.7mm
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