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The 8" eTape Liquid Level Sensor is a solid-state resistive sensor that measures fluid level without mechanical floats. As the sensor is submerged, hydrostatic pressure compresses its envelope, producing a resistance change that corresponds to the liquid level — lower liquid means higher resistance, and vice versa.

The resistive output is easy to read with any microcontroller ADC pin, making it straightforward to integrate into Arduino and other electronic control systems. This kit includes a 4-pin connector (so you don't need to solder directly to the delicate sensor pins) and a 560 Ω resistor for voltage divider circuits.

Key Features

  • Solid-State Design – No mechanical floats or moving parts
  • Resistive Output – Inversely proportional to liquid level, easy to read via ADC
  • 8" Sensing Length – Suitable for tanks, aquariums, and rain gauges
  • Simple Interface – Works with any microcontroller ADC pin

Ideal For

  • Hydroponics and aquaponics systems
  • Aquarium and fountain level monitoring
  • Pool and tank controllers
  • Rain gauge measurements

Package Contents

  • 1× 8" eTape Liquid Level Sensor
  • 1× 4-pin connector
  • 1× 560 Ω resistor

The 8 eTape Liquid Level Sensor + extras appears in the following collections:

SKU AF-463