5 eTape Liquid Level Sensor with Plastic Casing

The 5″ eTape Liquid Level Sensor with Plastic Casing is a solid-state resistive sensor that measures fluid level without mechanical floats or moving parts. This enclosed version features a hard plastic jacket that protects the sensor from physical damage, making it more durable than the bare sensor variant.

As the liquid level rises, hydrostatic pressure compresses the sensor's envelope, decreasing its resistance proportionally. The built-in resistive divider provides an analogue output — simply connect the red wire to 3V or 5V power, black to ground, and read the level on the white wire using any microcontroller ADC pin.

Key Features

• Protective Plastic Casing – Hard plastic jacket shields the sensor from damage
• Built-in Voltage Divider – Analogue output ready to read directly via ADC, no external resistor needed
• Solid-State Design – No mechanical floats or moving parts to wear out
• Simple 3-Wire Interface – Red (power), black (ground), white (analogue output)
• JST Connector – 3-pin JST connector for easy, secure connections
• Compact 5″ Length – Suited for small tanks and containers

Specifications

• Sensor Length: 5″ (127mm)
• Output Type: Analogue voltage (resistive divider, inversely proportional to level)
• Operating Voltage: 3–5V
• Connector: 3-pin JST
• Wiring: Red = power, Black = ground, White = analogue output

Ideal For

• Hydroponics and aquarium water level monitoring
• Rain gauge and weather station projects
• Fountain and pool controllers
• Applications where the sensor may be subject to physical contact or movement

Package Contents

• 1× 5″ eTape Liquid Level Sensor with Plastic Casing