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Water Level Sensor
Water Level Sensor
Water Level Sensor
Water Level Sensor
Water Level Sensor
Water Level Sensor
Water Level Sensor
Water Level Sensor
Water Level Sensor
Water Level Sensor

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EMS-00018-A

(Last updated) Jun 02, 2026

Water Level Sensor

Water Level Sensor

Subcategory
EMS - Input: Sensors

Description

The Water Level Sensor Module is used to detect and measure water levels in tanks, containers, reservoirs, automation systems, irrigation projects, and Arduino applications. It works using exposed parallel conductive traces that change resistance depending on the amount of water touching the sensor surface. Most modules provide both analog output (water level amount) and digital output (threshold detection using LM393 comparator). These sensors are widely used in smart irrigation systems, automatic water tank monitoring, rainwater harvesting, leak detection, and robotics projects.

Manufacturer Details

Manufacturer Part Number
Generic Electronics YL-69
Generic Electronics FC-28
DFRobot SEN0205
SparkFun SEN-10221

Application Resources

No application resources.

Technical Specifications

Product Type Water Level Sensor Module
Sensor Type Conductive Water Sensor
Operating Voltage 3.3V – 5V DC
Comparator IC LM393

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