yale premium alarm fantastic

Have had this yale 6400 three years now had no false alarms.I like the many features on the control box I use 2 live sirens 7pirs 6 door contacts
2key pads smoke detector 1 panic button and put main control box in the lofti think this is as good as it gets ive puta yale 6400 in a freinds house two years ago he has an electricity sub station right across the road from him again no problems. Iv just bought another 6400 im putting one in for my daughter i no there is a new model outbut at the prices you can pick these up £170 to 180 i think these are a must.One last thing when
the siren is put up make sure you put some packing behind the back springon the wall this stops the siren going off on its own.