Charger circuit failure alarm Designed to alert when there is open or disconnected Battery from charger…
Tag: alarm circuit
Door Knob Touch Alarm Circuit
Simple Door Knob Touch Alarm Circuit is constructed by using timer IC 555 and few easily available…
PIR Burglar Alarm Circuit
PIR sensor (Passive Infrared sensor) widely used in motion detection applications and security based applications, the…
Laser Security Alarm Circuit
We need safety and security for our valuable things, to protect our property simple and robust…
Vibration Alarm Circuit using IC555
The simple and reliable Vibration alarm circuit designed by using Vibration sensor switch SW – 18020P…
Door Open Alarm Circuit using Reed switch
If you want to Protect some door from unwanted access then you can use this simple…
Main Power Interruption Alarm
This main power interruption alarm circuit constructed with few simple components and…
Remote alarm for smoke detector
This remote alarm for smoke detector circuit is an application note from…
Configurable alarm with Multitone
This configurable alarm produces different types of tones. It can be selected by switches, this circuit…