Burglar Alarm with Time Delay NE555 DIY soldering kit

C$5.95

Availability: In stock (can be backordered)

3 - 9 C$5.36
10 - 24 C$5.06
25 + C$4.88
- +
GTIN: 4260474038558 SKU: 26855 Categories: , Tags: ,

Burglar Alarm with Time Delay NE555 DIY soldering kit.

The assembled module requires 5V power supply (standard 2.1/5.5mm DC plug). We recommend our 5V USB power supply cable.

The system is armed when jumper J1 is closed, and J2 is open. Replace J1 with a normally-closed door or window contact, or a trap wire. As soon the contact opens, the delay of some seconds starts. Time enough to flip a secret switch to turn the system off. If not turned off, the alarm will start to sound and the 2 LEDs will flash.

J2 can be connected to a panic or test switch. As soon J2 is closed, the alarm sounds, independent of the state of jumper J1.

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