A
Anonymous
Mar 30, 2026
Rating: 4/5
Solid Sensor
Does what it says. Just ensure the container wall isn't too thick or it might not detect.
Description
M03/M04/M05 Water Level Detection Module Sensor Non-Contact Liquid Level Touch Switch Liquid Sensor
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Model Series | M03 / M04 / M05 |
| Operating Voltage | 3.3V to 5V DC |
| Output Type | Digital Switch Signal |
| Detection Principle | Capacitive Induction |
| Compatible Containers | Non-metallic (Plastic, Glass) |
| PCB Dimensions | 30mm x 15mm (Approx) |
| Indicator LEDs | Power and Output Status |
| Interface Type | 3-Pin PH2.0 Header |
| Sensitivity Adjustment | Built-in Potentiometer |
| Operating Temperature | -10°C to 50°C |
5 reviews
A
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for Aquariums
Used this to monitor my fish tank water level. It detects through the glass perfectly without any leaks.
A
Anonymous
Mar 09, 2026
Rating: 5/5
Compact Size
The module is small enough to fit in tight spaces behind my reservoir. Highly recommend for DIY pumps.
A
Anonymous
Feb 26, 2026
Rating: 5/5
Great for Arduino
Very easy to interface with my microcontroller projects. The output is clean and reliable.
A
Anonymous
Jan 31, 2026
Rating: 4/5
Good Value
Works as expected. Had to tweak the sensitivity screw a bit but once calibrated it is stable.
5 FAQ
Q: Will this work with metal containers?
A: No, this sensor requires non-metallic containers like plastic or glass to function correctly.
Q: Can I use this with 12V power?
A: No, please use 3.3V to 5V DC. Higher voltage may damage the module.
Q: How do I know if it is detecting water?
A: There is an output LED that lights up when liquid is detected at the sensor position.
Q: What interface does it use?
A: It uses a standard 3-pin header for VCC, GND, and Signal Output.
Q: Is this safe for drinking water tanks?
A: Yes, since it is non-contact, the sensor does not touch the liquid directly.
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