433mhz universal wireless remote control switch dc 12v 4ch relay receiver module for 4ch 1527 learning code 433 mhz transmitter

brand name : angry monkey use : electric door use : lighting use : automated curtains use : universal wireless communication : rf support app : no channel : 4 package : no frequency : 433 mhz model number : kr1204-4 working voltage : 12 v quiescent current : 5ma receiving sensitivity : >97dbm modulation mode : ask matching mode : intelligent learning code working temperature : -30 ~ +80 shell : yes pcb dimension : 68.2x48.2(mm) rf working mode : superheterodyne output terminal : no , nc , com