A
Anonymous
Apr 13, 2026
Rating: 5/5
Reliable detection
No false triggers so far. Build quality seems solid.
Description
Liquid Level Sensor Module Water Level with Source Code Water Quality Detection Compatible with 51/STM32/Arduino
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Interface Type | Digital Output (DO) |
| Sensor Principle | Conductive Detection |
| PCB Material | FR-4 Epoxy |
| Working Current | < 20mA |
| Output Signal | TTL Level (High/Low) |
| Compatible MCU | 51 / STM32 / Arduino |
| Module Size | 65mm x 20mm x 8mm |
| Operating Temperature | -10°C to 70°C |
| Package Content | 1x Sensor Module, 1x Cable, 1x CD (Code) |
5 reviews
A
Anonymous
Mar 08, 2026
Rating: 4/5
Good value
Sensor is sensitive. Had to adjust the potentiometer slightly.
A
Anonymous
Feb 26, 2026
Rating: 5/5
Great for learning
Using this for my university project. STM32 compatibility is a plus.
A
Anonymous
Feb 17, 2026
Rating: 5/5
Perfect for my water tank project
Works exactly as described. The included code saved me a lot of time.
A
Anonymous
Jan 20, 2026
Rating: 4/5
Easy integration
Wiring is straightforward. Wish the cable was a bit longer.
5 FAQ
Q: How do I access the source code?
A: Code is on the included CD or available via QR code on the module.
Q: Is the sensor probe waterproof?
A: The probe is coated but not designed for submersion long-term.
Q: What is the response time?
A: The response is nearly instant, suitable for real-time monitoring.
Q: Does this work with 3.3V logic?
A: Yes, it operates within 3.3V to 5V range.
Q: Can this detect non-conductive liquids?
A: No, it relies on conductivity. Best for water or conductive fluids.
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