Wireless alarm with smoke + Gas detection

Complete wireless alarm system, with external wireless strobe light and smoke detector, ideal for the medium to large house or office, easy to expand with more sensors. The system will telephone you when there is an alarm, and you can listen to any noise when you call. System has battery back up on the panel and the siren, can add wired sensors if needed.

1x Wireless alarm with battery back up, 5 zones plus wired, telephone dailer.
1x Wireless outdoor siren with battery back up, strobe and rear temper switch.
4x Wireless PIR's with batteries and brackets.
1x Ceiling PIR
4x Wireless door/window sensors with batteries.
1x Wireless smoke detector with battery.
1x Gas alarm sensor
1x PA remote buttons with batteries.
1x indoor wired siren.
4x Slimline wireless remote controls with batteries.
2x Transformers, Warning security stickers, 1x Manual