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eTape Liquid Level Sensor

Product Code: 29131
Excl. VAT: £45.28 Incl. VAT: £54.34
You will earn 45 Robo Points for buying this product
The eTape Liquid Level Sensor is a solid-state sensor. Output resistance varies depending on the surface height of the fluid.

It's primarily designed to be used in non-corrosive water-based liquids and dry fluids (powders). It does away with clunky mechanical floats, and easily interfaces with electronic control systems.

The eTape sensor's envelope is compressed by the hydrostatic pressure of the fluid in which it is immersed. This results in a change in resistance that corresponds to the distance from the top of the sensor to the surface of the fluid.

The sensor's resistive output is inversely proportional to the height of the liquid: the lower the liquid level, the higher the output resistance; the higher the liquid level, the lower the output resistance. Due to its internal geometry, the resistance value can change by height level increments of 1/32 inch (0.79 mm).


  • Solid-state sensor; no moving parts.
  • Thin unobtrusive design can be used where other sensors may not fit.
  • Polyethylene Terephthalate (PET) substrate.
  • Gold-plated solder tabs

Key Specifications:

  • Power requirements: Up to +5 VDC
  • Communication: Resistive Output
  • Dimensions: 1 x 14.3 x .015 in (25 x 363.2 x .381 mm)
  • Operating temp range: +15 to +140 °F (-9 to +60 °C)

Product Attachments

View FileeTape Liquid Level Sensor Data Sheet    Size: (221.16 KB)
View FileeTape Liquid Level Sensor App Notes    Size: (512.23 KB)
View FileeTape Liquid Level Sensor Example Code    Size: (14.56 KB)

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Whenever possible, items which are in stock are dispatched the same day, or the next working day.

Large and/or heavy items are dispatched by UPS courier service and these orders must be placed before 15:00hrs (GMT) to ensure same day dispatch.

Small items are normally sent using a Royal Mail service for UK orders, and International Airmail or UPS for overseas orders

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eTape Liquid Level Sensor