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Digital relative humidity & temperature sensor RHT03

1. Feature & Application:

*High precision

*Capacitive type

*Full range temperature compensated

*Relative humidity and temperature measurement

*Calibrated digital signal

*Outstanding long-term stability

*Extra components not needed

*Long transmission distance, up to 100 meters

*Low power consumption

*4 pins packaged and fully interchangeable

2. Description:

RHT03 output calibrated digital signal. It applys exclusive digital-signal-collecting-technique and humidity

sensing technology, assuring its reliability and stability. Its sensing elements is connected with 8-bit single-chip

computer.

Every sensor of this model is temperature compensated and calibrated in accurate calibration chamber and the

calibration-coefficient is saved in type of programme in OTP memory, when the sensor is detecting, it will cite

coefficient from memory.

Small size & low consumption & long transmission distance(100m) enable RHT03 to be suited in all kinds of

harsh application occasions. Single-row packaged with four pins, making the connection very convenient.

3. Technical Specification:

Model

RHT03

Power supply

3.3-6V DC

Output signal

digital signal via MaxDetect 1-wire bus

Sensing element

Polymer humidity capacitor

Operating range

humidity 0-100%RH;

temperature -40~80Celsius

Accuracy

humidity +-2%RH(Max +-5%RH);

temperature +-0.5Celsius

Resolution or sensitivity humidity 0.1%RH;

temperature 0.1Celsius

Repeatability

humidity +-1%RH;

temperature +-0.2Celsius

Humidity hysteresis

+-0.3%RH

Long-term Stability

+-0.5%RH/year

Interchangeability

fully interchangeable

4. Dimensions: (unit----mm)