Cheapest I have seen this. You can buy the camera kit separately for about £95 and further cameras for about £30. A friend is using it and is quite happy with the gadget. I have ordered mine.
1 x LED Control Panel
1 x 2 x PIR
1 x 2 x Door Contacts
1 x Siren
1 x Remote Control
1 x Batteries, fixings, instruction manual and installation DVD
1 x Plug in power supply for control panel
Here's some detail from the supplier:
Friedland Response is a wirefree range of security systems, offering a cost effective solution which is easy to install and easy to operate. Systems are available in a variety of sizes and capabilities to suit specific installation requirements. A full range accessories are available to upgrade and expand systems
All wireless alarm systems operate by sending signals across radio frequencies, commonly the crowded 433MHz frequency. Friedland now introduce a new range of wireless alarm systems, using the more secure 868MHz frequency that is less prone to interference from other devices than systems operating on 433MKz. The higher the antenna output provides a stronger transmission enhancing the performance and range from the control unit to the accessories.
TheFriedland Response SL8 Premium Wireless Expanded Zoning Alarm System is the perfect choice for protecting medium to large homes. It allows multi zone control so that if you leave the property, everything can be alarmed but when you are at home - just the doors can be alarmed for example.