Home Alarm Sensor Diagram. Red and black wires are usually the positive and negative power wires respectively. This burglar alarm project is based on pir sensor um3561 and speaker.
We hope this article can help you and after read this tutorial you can test and install the gsm alarm in an easy manner. Extra 6 off with voucher. 4 channel hornblasters car alarm system with shock sensor slide remote.
The main supply is 120v ac in us and 230v ac in eu.
Pir sensor used to detect body motion and um3561 speaker to produce police siren after any movement detection. Most motion sensors installed for security systems operate on 12v dc power and are connected to four wires. Moreover these security systems are not bound to homes only nowadays offices banks shopping malls etc. S1 s2 2.