Simple Water Detection Sensor with Digital Output

SKU: ADA4965 Brand: Adafruit

Keep wet things wet and dry things dry by detecting when the dry things get wet by accident! This palm-sized cherry-red water sensor is simple and easy to implement in your wet-dry-sensing project.

$4.05 AUD, inc GST

$3.68 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 26th of Nov

Quantity Discounts:

10-25 $3.54 (exc GST)
25+ $3.43 (exc GST)

Keep wet things wet and dry things dry by detecting when the dry things get wet by accident! This palm-sized cherry-red water sensor is simple and easy to implement in your wet-dry-sensing project.

Usage is very simple: connect the minus (-) pin to ground, connect the plus (+) pin to 3 to 5V DC and then the output signal pin (S) goes to your microcontroller.

The sensor has a very lightly biased transistor that is connected to two long sets of interlocking traces. When a lil bit of water/condensation lands on the PCB and touches two of the traces, the transistor will turn on, setting the output pin high. The output voltage does vary a bit with how much water is detected, but honestly we recommend just using it as an "on or off" type sensor.

Avatar water-bending skills not included!

Technical Details

Technical dimensions (including header): 64.7mm x 20mm x 7.7mm
Product Weight: 3.7g / 0.1oz

This product is listed in:

Sensors>Liquid & Flow

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