Liquid level detector

Alarm is actuated when liquid level is above the probes and remains activated even if the level drops below the probes
Liquid level detector - schematic

This latching action lets you know that the pre-set level has been reached or exceeded sometime in the past.


Recommended videos

  • Arduino Liquid Sensor Example Code and Schematic
    Duration: 3:09.
  • HackAttack Episode 3: Non-contact liquid level sensor
    Duration: 1:23.
  • Liquid level sensor and controller (auto top-off for aquarium)
    Duration: 7:34.