... the system by calling-in, such as arm, disarm, listening-in, output, and so on..13. Password operation to ... 1800/1900 MHzReceive Coding: ASKReceive Frequency: 315/433MHzRemote Control Distance: No obstacle 100mDetectors:16packinglist:main panel 1pc wireless PIR ... is widely used in the security devices, data surveillance and long-distance monitor system of the home, residential area, electric power ...