Features: Model:Far-R1 Brand:Hummingbird Wireless Antenna type:External Color classification:Red Size:22x9x4mm Frequency of operation:433MHz Operating voltage:3.3V How to communicate:ASKOOK
۴۳۳MHZ ASK RXB22 Frequency Modulation: ASK working voltage: 2.8-5v Dimension:30.5*8.5*5mm Auto remote door switch Remote door open machine Wireless security