1,gsm/pstn alarm system manufacturer 2,CE certificate 3,accepted ODM/OEM 4,99wireless ... +4wired zones Item:Voice Guide 150 sensor Wireless Home GSM alarm system with Quad-band1.LCD English blue back-light display, voice prompt ... remote control and 150 sensors. 12.Unique black box,display recent 72 disarmed records and 102 recent alarm records.13. Built-in ...