eTape Liquid Level Sensor
eTape Liquid Level SensoreTape Liquid Level Sensor
eTape Liquid Level Sensor

eTape Liquid Level Sensor

Manufacturer: Parallax
Product Code: Sensors-Liquid-Level_29137
Weight:0.25 lb
Reward Points:0
In Stock
Price: $39.99

eTape Liquid Level Sensor.

Solid-state eTape sensors make it easier to monitor the height of fluids — liquid or a fine powder — in a container. Placed vertically in a container, eTape senses the hydrostatic pressure applied by the fluid to the portion of the sensor that is submerged. 

eTape sensors output a value in a continuous range corresponding to the fluid level along the entire length of the sensor, ideal where a single-point fluid level detection is not enough.  The slim, low-profile sensor has no moving parts and fits unobtrusively where there may not be enough room for mechanical float devices.

The Chemical eTape Liquid Level Sensors are enclosed in an FEP (Teflon) envelope rated for chemical, petroleum, and food-safe applications.

eTape Liquid Level Sensors produce a variable resistance output.  If your application is more suited to monitoring a voltage output, you may want to use the sensor with the optional eTape 0-5VDC Linear Resistance to Voltage Module.

Key Features:

  • Rated for chemical, petroleum, and food-safe applications.
  • Crimpflex male pins easily connect to microcontroller projects.
  • Reference resistor pins allow for optional temperature compensation.
  • Protected vent hole to equilibrate with atmospheric pressure.

Application Ideas:

  • Evaporation rate monitor.
  • Aquaculture projects.
  • Industrial mixing control systems.


  • Active sensor length: 12.4 in (315 mm).
  • Actuation depth: 1 in (25.4 mm).
  • Output: Variable resistance, 400-2000 ohms +/-20-%.
  • Reference Resistance: 2000 ohms +/-20-%.
  • Resistance gradient: 150 ohms/inch (60 ohms/cm).
  • Resolution : < 0.01 in (0.25 mm).
  • Power rating: 0.5 watts (VMax = 10 V).
  • Operating temperature range: 15 to 150 °F (-9  to 65 °C).
  • Overall dimensions: 14.2 x 1.0 x 0.015 in (361 x 25.4 x 0.38 mm).

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