... camera remotely and check anywhere secretly and safely4 Multimode alarm: Camera can send alarm messages by SMS, video call, voice call5 ... 10-90%,without condensationWorking frequency: HSDPA/UMTS 850/1900/2100 MHzEDGE/GPRS/GSM 850/900/1800/1900 MHzWireless sensor receiving ... wireless sensor 15unites,wireless siren optional to add (more alarm sensor to be added throught program)Effective distance of the ...