The circuit is from 80s Siliconix documentation. The integrated circuit is from the company and is not common today. It can be used operational equivalent more common in our times.
The contact of the sensor with water or humidity causes the relay to close its contacts. The...
This siren was found in a 1980s documentation. The circuit makes use of very old operational that were...
This circuit was obtained from Motorola documentation from 1969. The setting applies to other...