WATER SENSOR HW-038

Product Description

The HW-038 Water Sensor Module is a simple and low-cost water detection/water level sensing module used in Arduino and electronics projects.

It works by detecting changes in electrical conductivity when water touches its exposed metal traces.

KEY FEATURES

• Water level/water presence detection sensor
• Uses exposed parallel conductive tracks on PCB
• Analog signal output proportional to water contact level
• Low-cost and easy to use with microcontrollers
• Compatible with Arduino, ESP32, Raspberry Pi
• Fast response to water contact
• Can be used for leak detection or tank level monitoring
• Low power consumption
• Compact and lightweight design
• Suitable for DIY electronics and automation projects

SPECIFICATIONS

• Product Type: Water Level / Leak Detection Sensor Module
• Model: HW-038
• Operating Voltage: 3V – 5V DC
• Operating Current: < 20 mA
• Sensor Type: Analog output sensor
• Detection Area: approx. 40 × 16 mm
• Output Signal: Analog voltage (varies with water contact area)
• Working Principle: Changes resistance when water bridges PCB traces
• Interface Pins: VCC, GND, S (Signal)
• Material: FR4 PCB with exposed copper tracks
• Application: Water tank level monitoring, flood detection, rain detection, leakage alarms