How to wire 4-wire smoke detector with home security alarm system?

4-wire smoke detector has 2 wire for power supply wiring and 2 wire for alarm signal wiring. It has LED indicator for alarm notification and working status indication. With the connection of home security alarm panel, it can send alarm to mobile phone, app. There are various types of smoke alarm, smoke detectors for home fire prevention. 4-wire smoke detector is professional fire alarm system with EN54 certificate. You can shop smoke alarm system at Free technical support and tutorials are available at