I have a water tank where I want to get an alarm when the water level change, up or down, based on to wires going from top to bottom in the tank as sensors. I have found a circuit on the web to trigger alarm on a certain water level, but not one that triggers on change in water level. I want the circuit to be simple with as few components as possible more that accurate. I also have living organism in the tank so the voltage on the sensors to be as low as possible. Can anybody point me in the right direction? Than you.
- posted
16 years ago