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Home / Computer Hardware, Monitors & Peripherals / Genuine Liquid Level Sensor Water Level Monitoring Sensor Module Compatible with 51/STM32

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage 3.3V - 5V DC
Interface Type 3-Pin PH2.0 Connector
PCB Dimensions 65mm x 20mm
Substrate Material FR-4 Fiberglass
Microcontroller Compatibility 51 Series, STM32, Arduino
Output Signal Analog & Digital Switch
Working Current < 20mA
Item Weight 15 grams
PCB Color Green Solder Mask
Package Contents 1x Sensor Module, 1x Dupont Cable

5 reviews

A

Anonymous

Mar 05, 2026

Rating: 3/5

Documentation is sparse

Hardware works fine but had to search online for code examples. Would be nice to have a wiki link included.

A

Anonymous

Feb 15, 2026

Rating: 4/5

Good value, minor shipping delay

The sensor itself is high quality. One pin was slightly bent upon arrival but easy to fix. Detects water levels accurately.

A

Anonymous

Feb 13, 2026

Rating: 5/5

Robust and sensitive

Tested in a tank setup. No corrosion after a week of continuous testing. Good build quality for the price.

A

Anonymous

Jan 30, 2026

Rating: 5/5

Perfect for my rain alarm

Works exactly as described. Connected it to my STM32 board without any issues. Sensitivity is adjustable via the potentiometer.

A

Anonymous

Jan 22, 2026

Rating: 5/5

Great for university projects

Used this for a final year project. Very reliable and the output is stable. Highly recommend for beginners.

5 FAQ

Q: Can this be submerged long term?

A: It is coated but prolonged submersion may lead to corrosion over time.

Q: Do you have sample code for STM32?

A: Yes, please check the download section or contact us for the GitHub repository link.

Q: Does it provide analog output?

A: Yes, there is an AO pin for analog reading and DO for digital threshold.

Q: What is the length of the included cable?

A: The standard Dupont cable included is approximately 20cm long.

Q: Is this 3.3V logic compatible?

A: Yes, it operates comfortably within 3.3V to 5V ranges.

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