5 eTape Liquid Level Sensor + extras

The 5″ eTape Liquid Level Sensor is a solid-state resistive sensor that measures fluid level without mechanical floats or moving parts. As the liquid level rises, hydrostatic pressure compresses the sensor's envelope, decreasing its resistance proportionally — making it simple to read with any microcontroller ADC pin.

This 5″ version is ideal for smaller containers such as aquariums, rain gauges, hydroponics reservoirs, and fountain controllers. It includes a 4-pin connector (so you don't need to solder directly to the delicate sensor pins) and a 560Ω reference resistor for building a voltage divider circuit.

Key Features

• Solid-State Design – No mechanical floats or moving parts to wear out
• Resistive Output – Resistance varies inversely with liquid level, easy to read via ADC
• Simple Interface – Build a voltage divider with the included 560Ω resistor and read with any microcontroller
• Connector Included – 4-pin connector eliminates soldering directly to sensor pins
• Compact 5″ Length – Suited for small tanks and containers

Specifications

• Sensor Length: 5″ (127mm)
• Output Type: Resistive (inversely proportional to liquid level)
• Reference Resistor: 560Ω ±5% (included)
• Connector: 4-pin (included)

Ideal For

• Hydroponics and aquarium water level monitoring
• Rain gauge and weather station projects
• Fountain and pool controllers
• Any application requiring non-mechanical liquid level sensing

Package Contents

• 1× 5″ eTape Liquid Level Sensor (bare sensor)
• 1× 4-pin connector
• 1× 560Ω 5% resistor