Data Sheet

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this section to accelerate its recovery. Please be aware that operating the DHT11 sensor in the
non-normal working conditions will accelerate sensor’s aging process.
(2) Attention to chemical materials
Vapor from chemical materials may interfere with DHT’s sensitive-elements and debase its
sensitivity. A high degree of chemical contamination can permanently damage the sensor.
(3) Restoration process when (1) & (2) happen
Step one: Keep the DHT sensor at the condition of Temperature 50~60Celsius, humidity <10%RH
for 2 hours;
Step two:K keep the DHT sensor at the condition of Temperature 20~30Celsius, humidity
>70%RH for 5 hours.
(4) Temperature Affect
Relative humidity largely depends on temperature. Although temperature compensation
technology is used to ensure accurate measurement of RH, it is still strongly advised to keep the
humidity and temperature sensors working under the same temperature. DHT11 should be
mounted at the place as far as possible from parts that may generate heat.
(5) Light Affect
Long time exposure to strong sunlight and ultraviolet may debase DHT’s performance.
(6) Connection wires
The quality of connection wires will affect the quality and distance of communication and high
quality shielding-wire is recommended.
(7) Other attentions
* Welding temperature should be bellow 260Celsius and contact should take less than 10
seconds.
* Avoid using the sensor under dew condition.
* Do not use this product in safety or emergency stop devices or any other occasion that failure
of DHT11 may cause personal injury.
* Storage: Keep the sensor at temperature 10-40℃, humidity <60%RH.
Declaim:
This datasheet is a translated version of the manufacturer’s datasheet. Although the due care
has been taken during the translation, D-Robotics is not responsible for the accuracy of the
information contained in this document. Copyright © D-Robotics.
D-Robotics: www.droboticsonline.com
Email contact: [e-mail]