Results tagged #Flood Alarm in Circuits
Simple Flood Alarm Circuit
A common collector amplifier drives a 2N3904 switch to sound alarm BZ1. The wire leads to water sensor or sump pit, level switch, etc....
Flood Alarm
Using a few bipolar transistors, this circuit acts as a flood alarm. When liquid touches the probes, leakage current biases Ql,...
Flood alarm
The alarm is built around two audio oscillators, each using two NAND gates. The detection oscillator is gated on by a pair of remote probes....