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Description
HKD RAIN/WATER SENSOR MODULEHumidity Detection Sensor Module. Rain Humidity Sensor Module Humidity Detection Sensor Module Overview The rain sensor detects water that completes the circuits on its sensor boards' printed leads. The sensor board acts as a variable resistor that will change from 100k ohms when wet to 2M ohms when dry. In short, the wetter the board the more current that will be conducted. Features Sensitivity can be adjusted with the potentiometer. Power indicator,
Humidity Detection Sensor Module. Rain / Humidity Sensor Module
Humidity Detection Sensor Module
Overview
The rain sensor detects water that completes the circuits on its sensor boards' printed leads. The sensor board acts as a variable resistor that will change from 100k ohms when wet to 2M ohms when dry. In short, the wetter the board the more current that will be conducted.
Features
- Sensitivity can be adjusted with the potentiometer.
- Power indicator, the output signal LED indicator
- A large area of rain board, more conducive to detect rain
- Board with positioning holes to facilitate installation
- Raindrops and control panels are separate, easy to wire leads
Pins:
- A0.......... Analog output
- D0......... Digital output
- GND..... Ground
- VCC...... Positive voltage (input: 5v for analog 3.3v for Digital.)
The other two pins on the comparator board should be connected to the rain sensor board.
The kit can be used for weather monitoring purpose also.
The output is in both digital and analog forms:
- In digital: The output is either 0 or 1 and in Analog you get varied output.
- Its output current is 100mA which means that it can easily trigger a relay, a buzzer and an LED.
- The sensitivity can be adjusted with the potentiometer on the board.
- LED lights up when there is no rain and output(D0) is high and when there is raindrop the output is LOW.
Specifications
- With adjustable precision potentiometer sensitivity adjustment
- The working voltage of 3.3V-5V
- The output format: digital switching outputs (0 and 1)
- A fixed bolt holes for easy installation
- Size: 3.2cm x 1.4cm and 5.4 x 4cm
Additional Information
| Device | Sensor Module |
| Type | Rain | Humidity Detection |
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4.2 ★★★★★
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Product Reviews
★★★★★ 5
Great for a growing kid
Size: Large, Color: Sky Blue, Size: Large, Color: Sky Blue
Good quality for a good price. My teen is outgrowing his medium clothes and into larges so it fit slightly big which I expected but that just means he should be able to wear it to his fall dance as well. Nice material, not see through at all even after dancing all night and sweating. Exact color blue as pictured. Very happy over all.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Great shirt for the price.
Size: 4X-Large Big Tall, Color: Sky Blue
Shirt fit perfectly and was true to size. The material seems to be of a good quality for the price, and it is surprisingly light weight when worn. I use these as daily shirts, and have only used it once so far. Did well after washing and required little to no ironing out of the dryer. Very impressed with the item so far.
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Reviewed in the United States on February 1, 2026
★★★★★ 5
Perfect for my teenage son.
Size: Small, Color: Blue White Pinstripe
My son has worn this shirt many times to temple for bar mitzvah services. It’s soft doesn’t wrinkle easily and very comfortable for him to wear. He receives many compliments on it. This is a relatively thin shirt sizing was accurate. Fabric is what I would consider Nice quality. Color is spot on.
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Reviewed in the United States on January 26, 2026
★★★★★ 4
Surprising quality for such a cheap item
Size: 4X-Large Big Tall, Color: Navy White Diamond Geo
Surprisingly good fit. The material is a bit thin and if you're wearing it on a cold day, I would recommend an undershirt. The collars could use a good starching for a more modern look. As it stands with an open jacket, the large collar makes it look a little dated. If you have 20 dollars and need a shirt you could certainly do worse.
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Nice
Size: 3X-Large Big, Color: White
Good shirt for price
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Reviewed in the United States on April 24, 2026