Adafruit AM2302 393 User Manual
Product codes
393
Y
Y
Y
Y
our specialist in innovating humidity & temperature sensors
Thomas Liu (Sales Manager)
Email: thomasliu198518@aliyun.com
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Standard
Standard
Standard
Standard AM2302
AM2302
AM2302
AM2302/DHT22
/DHT22
/DHT22
/DHT22
AM2302
AM2302
AM2302
AM2302/DHT22
/DHT22
/DHT22
/DHT22 with
with
with
with big
big
big
big case
case
case
case and
and
and
and wires
wires
wires
wires
Digital
Digital
Digital
Digital relative
relative
relative
relative humidity
humidity
humidity
humidity &
&
&
& ttttemperature
emperature
emperature
emperature sensor
sensor
sensor
sensor AM2302
AM2302
AM2302
AM2302/DHT22
/DHT22
/DHT22
/DHT22
1.
1.
1.
1. Feature
Feature
Feature
Feature &
&
&
& Application
Application
Application
Application::::
*High precision
*Capacitive type
*Full range temperature compensated
*Relative humidity and temperature measurement
*Calibrated digital signal
*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
*Extra components not needed
*Long transmission distance, up to 100 meters
*Low power consumption
*4 pins packaged and fully interchangeable
2.
2.
2.
2. Description:
Description:
Description:
Description:
AM2302 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 AM2302 to be suited in all kinds of
harsh application occasions. Single-row packaged with four pins, making the connection very convenient.
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 AM2302 to be suited in all kinds of
harsh application occasions. Single-row packaged with four pins, making the connection very convenient.
3.
3.
3.
3. Technical
Technical
Technical
Technical Specification:
Specification:
Specification:
Specification:
Model
AM2302
Power supply
3.3-5.5V DC
Output signal
digital signal via 1-wire bus
Sensing element
Polymer humidity capacitor
Operating range
humidity 0-100%RH;
temperature -40~80Celsius
Accuracy
humidity
humidity
humidity
humidity +-2%RH
+-2%RH
+-2%RH
+-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