Water Level Sensor Module

The Water Level Sensor Module is an analog strip sensor with a 40mm x 16mm detecting range, operating from 3.3V to 5V DC at up to 20mA current, rated for 10% to 90% non-condensing humidity. Unlike the mechanical float ball switch covered separately, this water level sensor module uses a PCB strip with multiple exposed parallel conductive traces — as water rises and progressively bridges more traces along the strip’s height, the sensor outputs a continuously varying analog voltage proportional to how high the water level has risen.

The water tank level sensor’s continuous analog output is the key difference from binary float switches — rather than a single fixed-height trigger point, this sensor reads gradual level changes across its entire 40x16mm sensing area, useful for water level controller sensor applications needing percentage-based tank fill estimation rather than just full/empty alerts. The water level sensor price reflects this graduated sensing capability, and the water level indicator sensor’s analog output connects directly to an Arduino analog pin without needing digital threshold circuitry.

the water level sensor arduino strip’s exposed copper traces are susceptible to mineral buildup and oxidation in hard water over extended submersion, which can affect long-term accuracy similar to other resistance-based water sensors. StemVolt provide this module is well-suited for engineers building tank level monitoring systems and practical water management electronics projects.

Related Products:

• Checkout Raindrops Detection Sensor Module 
• Explore The Touch, Sound and Vibration Sensors

Features:

• Continuous analog output tracks gradual water level changes
• 40x16mm strip provides graduated multi-point level sensing
• Direct analog pin connection — no digital threshold circuitry needed
• 3.3V to 5V compatible with Arduino and similar microcontrollers
• 20mA low current draw suits battery-powered tank monitors

Technical Specifications:

 Applications:

• Water Level Sensor used for Arduino tank fill percentage display
• College project uses water level sensor module for level demo
• Overhead tank uses water tank level sensor for India fill monitoring
• Aquarium uses water level controller sensor for gradual level tracking
• IoT node uses water level sensor arduino for remote tank level alert

Package Includes:

• 1 x Water Level Sensor Module