Alarm fitting

Hi guys,

Just want to know if anyone has a Laserline alarm fitted in their bike. I wanna get a Laserline alarm for my bike so I can bring down my insurance. I looked up the net and found the (Laserline 862TH/TL) which is Thatcham Cat 1 Alarm for only £125 which is much cheaper that datatool 4 but I can’t seem to be able to find anyone or any place to fit it in London, hope someone can help. Or anyone know some cheap but good for insurance alarm I can use.

Many Thanks in advance