sn5201

1) wired/wireless compatible gsm alarm system with voice prompt 2) 4 wired connection. 3) Up to105pcs wireless detectors wired/wireless compatible gsm alarm system with voice prompt gsm intelligent alarm system simple DIY gsm burglar alarm system Basic functions:1 Voice instructions for all the operation.2 A single key to realize all related functions.3 Up to 40pcs remotes supportable.4 Up ...