The water level sensor module uses an analog sensing strip (a resistive ladder printed on a PCB) to measure how much of its 40×16 mm detecting area is submerged. It connects directly to a water tank level sensor circuit or any 3.3V to 5V microcontroller without extra hardware. The output voltage rises as more sensor area contacts water, giving a continuous level reading instead of just a high or low signal.
What makes this water level sensor useful is that it consumes only 20 mA maximum current, so it draws less power than a single led. Prolonged submersion can also corrode the copper traces over time, so position it vertically at the side wall of a container for longer life.
Maker building water level controller sensor projects, hobbyists monitoring home tanks, and prototyping IoT alerts all use it. StemVolt provides this sensor with trusted quality, ensuring reliable performance and easy usability.
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Features:
- Detecting range of gives enough surface area to read low, mid, and high water levels accurately
- Analog sensor type outputs a proportional voltage that rises smoothly as the submerged area increases
- Operating voltage of 3.3V to 5V DC makes it compatible with both 3.3V ESP boards and 5V Arduino boards
Technical Specifications:
| Specification | Details |
|---|---|
| Operating Voltage | 3.3V to 5V DC |
| Max. Operating Current | 20 mA |
| Detecting Range | 40×16 mm |
| Humidity Range | 10% – 90% non-condensing |
| Sensor Type | Analog |
Applications:
- A water tank alarm project uses this to buzz a speaker when the tank runs full
- A plant watering reminder connects the sensor to an LED that lights on low moisture
- Water level arduino project reads the analog pin and logs tank data over serial monitor
Package Includes:
- 1 x Water Level Sensor Module
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