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HR202 Humidity Detection Sensor Module DC 3.3V-5V LM393 Chip (3 wire system)

HR202 Humidity Detection Sensor Module
Item Code: TOP480927
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  • Description
  • Documents
  • Shipping Methods
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  • Using high-quality HR202 humidity sensor;   
  • The comparator output signal waveform, clean, good, strong drive ability, more than 15mA.
  • With a potentiometer to adjust temperature detection threshold
  • Working voltage 3.3V-5V
  • Output: digital switch output (0 and 1)
  • A fixed bolt holes, easy to install
  • Small PCB size: 3.2cm x 1.4cm
  • The use of wide voltage comparator LM393  

Instructions for use:

  • Humidity sensor module is very sensitive to the environment humidity, generally used to detect the humidity of environment;
  • Through the regulation of the potentiometer, can change the humidity detection threshold (i.e. control humidity), such as the need to control the environmental humidity is 60%,Module in the corresponding environmental humidity adjusting the green light, DO outputs high level, below the setting humidity value, high output, light is not bright;
  • The DO output can be directly connected with the MCU, the MCU to detect high level, thereby detecting the humidity of the environment change;
  • The output of the DO can directly drive the relay module, which can be composed of a humidity switch, control related device in an appropriate working environment;

Shipping List

  • Humidity Sensor: 1pcs


(1) The Two main shipping methods

When you order from the smaring.com, you can choose your preferred shipping method on the Order Information page during the checkout process. The smaring.com offers the following TWO different international shipping methods:

Shipping Way

Shipping Company

Estimated Delivery Time

Tracking Information

Registered Post

China Post,HongKong Post, Singapore Post,etc.

7-39 days


Expedited Shipping

DHL, FeDex, UPS, EMS, etc.

6-13 days



(2) Free shipping on all orders over $50

If the total price of all orders in one time is over $50, and the total weight is less than 2kg, then, your order would be FREE shipped by Registered Post all over the world. 

(3) Tracking your order

All orders can be tracked in the site: http://www.17track.net. Open this site, and fill in the tracking number, like RS387577781CN (NOT order number), Then you can see the shipping information.

Any problem, please contact us by http://www.smaring.com/help/

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Any problem, please contact us by http://www.smaring.com/help/.

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