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8" eTape Liquid Level Sensor + extras

SKU: ADA463

$60.15 AUD, inc GST
8" eTape Liquid Level Sensor + extras
60.15 AUD

SKU: ADA463

$60.15 AUD, inc GST
1 reviews 0 5 5
Ships today (delivered by Fri, 9th of Dec)

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The eTape Liquid Level Sensor is a solid-state sensor with a resistive output that varies with the level of the fluid. 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. 

This is a very unique sensor, Adafruit hasn't seen anything else that is affordable and accurate for measuring liquid level. This sensor seems like it would be a handy addition to an hydroponics, aquarium, fountain or pool controller, or perhaps measuring a rain tube. This particular sensor is the 8" model, Adafruit also includes a 4-pin connector and 560 ohm resistor. The connector is so you don't have to solder directly to the delicate pins: instead, just solder to the connector and plug it onto the sensor. 

Since the sensor is resistive, it is easy to read it using a microcontroller/Arduino ADC pin. Check the tutorials tab for a quick-start pointer.

Technical Details

  • Sensor Length: 10.1" (257 mm)
  • Width: 1.0" (25.4mm)
  • Thickness: 0.015" (0.208 mm)
  • Resistance Gradient: 140Ω / inch (56Ω / cm), ± 10%
  • Active Sensor Length: 8.4" (213 mm)
  • Substrate: Polyethylene Terephthalate (PET)
  • Sensor Output: 1500Ω empty, 300Ω full, ± 10%
  • Actuation Depth: Nominal 1 inch (25.4 mm)
  • Resolution: 0.01 inch (0.25 mm)
  • Temperature Range: 15°F - 140°F (-9°C - 60°C)

For more information, check out: eTape Liquid Level Sensor Datasheet 

eTape Liquid Level Sensor App note

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Customer Reviews

  1. Review by Justin verified purchaser
    Rating
    100

    Great sensor works as advertised. Follow the Adafruit guide and hook it up as a once side of a voltage divider to read on a micro. One tip is to ensure the connected cable has some strain relief as pulling on the connector can affect the sensors output. (Posted on 2/10/2016)

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