It is a superregeneration wireless receive module with VHF/UHF.It use rolling code to code between transmit and receive,and it has 4000000000 code address,the security is high.Technical Parameter:
Operating frequency:315mhz-433mhz
Operating voltage:5v
Receive sensitivity:-105dbm
Modulate mode:ASK
Receive distance:80mi
Typical application:
Guard against theft and alarm hoster,electric curtain,garage/gate remote control,electromotion door and so on.