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Home / Computer Hardware, Monitors & Peripherals / Water Level Sensor Module, Droplet Moisture Measurement, Water Depth Detection Accessory, Water Sensor for

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage 3.3V - 5V DC
Output Type Analog & Digital (DO & AO)
Interface 3-pin PH2.0 Connector
PCB Dimensions 63mm x 20mm x 8mm
Working Current < 20mA
Sensing Principle Conductive Trace Detection
Substrate Material FR-4 Epoxy Glass
Net Weight 5 grams
Compatibility Arduino, ESP32, STM32, Raspberry Pi
Package Includes 1x Sensor Module, 1x Dupont Cable

5 reviews

A

Anonymous

Apr 06, 2026

Rating: 5/5

Arduino compatible

Easy to wire up using standard jumper cables. I used it for a plant watering system and it triggers reliably when the soil is wet.

A

Anonymous

Apr 01, 2026

Rating: 5/5

Perfect for my rain alarm project

Works exactly as described. I connected it to my Arduino Uno and it detected water droplets instantly. Great sensitivity for the price.

A

Anonymous

Mar 12, 2026

Rating: 3/5

Corrodes eventually

Functioned well for about a month of continuous exposure to water. The traces started to corrode after that. Good for temporary prototypes.

A

Anonymous

Feb 16, 2026

Rating: 5/5

Great for prototypes

Fast delivery and the module is compact. I use it to detect leaks under my sink prototype. Very sensitive to moisture.

A

Anonymous

Jan 29, 2026

Rating: 4/5

Good value but needs calibration

The sensor works well, but you need to adjust the potentiometer on the back to get the digital output right. Analog reading is stable.

5 FAQ

Q: Is the sensor waterproof for long term submersion?

A: The PCB traces are exposed. While it detects water well, prolonged submersion may lead to corrosion over time. It is best for intermittent detection.

Q: Can it measure exact water depth in centimeters?

A: It provides an analog value corresponding to conductivity. You can calibrate it for relative depth, but it is not a precise ultrasonic depth meter.

Q: What is the length of the included cable?

A: The included Dupont connector cable is approximately 15cm in length, suitable for most breadboard setups.

Q: Do I need to install a specific library for this?

A: No specific library is required. You can use standard analogRead() functions in the Arduino IDE to read the sensor values.

Q: Does this work with 3.3V logic boards like ESP32?

A: Yes, the module operates within the 3.3V to 5V range, so it is fully compatible with ESP32 and similar boards.

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