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Octopus Water level sensor

Octopus Water level sensor

We have ✅ 5 available of the EF-EF04094 in our Sydney warehouse. An extra 100 units available with a short lead time.

Express post delivery (2-5 business days)

The Octopus Water Level Sensor detects water level using exposed parallel traces on the PCB. As the water level rises, more traces are submerged, producing a higher analogue signal output. Compatible with micro:bit (3 V) and other microcontrollers operating at 3–5.5 V.

Part of the ElecFreaks Octopus series, this sensor uses the standard 3-pin connector (GND, VCC, Signal) for easy plug-and-play connection with Octopus:bit and similar breakout boards.

Warning: The components above the MAX water level line are not waterproof. Do not submerge the sensor beyond the marked line.

Key Features

  • Analogue Output – Signal proportional to water level for easy threshold detection
  • 3-Pin Connection – GND, VCC, Signal for simple wiring
  • micro:bit Compatible – Works at 3 V; read analogue values via MakeCode
  • Compact – 59.15 × 19 mm, 5.5 g

Specifications

  • Working Voltage: 3–5.5 V DC
  • Connection: G (GND), V (VCC), S (Signal)
  • Dimensions: 59.15 × 19 mm
  • Weight: 5.5 g

Ideal For

  • Water level monitoring and alarms
  • micro:bit science projects
  • Simple liquid level detection

Resources

The Octopus Water level sensor appears in the following collections:

SKU EF-EF04094
by Little Bird