Water Sensor Alarm Circuit


Posted on Feb 4, 2014

This small water sensor alarm circuit makes a loud warning sound when a humidity sensor detects a quantity of water. This circuit assembly is an application of low power comparator LM1801 made by National Semiconductor. The reference voltage for the integrated circuit is fixed with the help of R2. When pin 4 of the LM1801 voltage exceeds preset th


Water Sensor Alarm Circuit
Click here to download the full size of the above Circuit.

reshold, because the moisture sensor noticed a smaller or larger chip will command the active piezoelectric buzzer with a current of over 24 mA. In the surveillance state, the water sensor alarm circuit has a current consumption of 10 microAmps so you can use a 9V battery for almost one year. We can connect many sensors simultaneously.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Digital-Output Sensor Simplifies Temperature Acquisition
    LED display Digital Calendar AT89C2051
    Dual voltage power supply 12 volts
    Electronic phone bell
    Sound-effects-generator
    2x30watt home amplifier circuit
    autotronics injector circuit
    Microphone Circuit Test Oscillator
    microphone Sennheiser MKH 415 T
    Combinatorial and Sequential Circuits
    The 2N5109 Amplifiers
    CIC2851E refrigerator closed remind schematic
    Bedside lamp with CD production delay



    Top