Specs

     F1 868MHz radio transmitter
     The transmitter is installed inside the detector
     Compatible with OPTEX radio detector series: VXI, BX,  FTN, VXS, BXS, WXI, WXS, QXI
     Allows you to send RF signals via radio to the control panel
     Learn / test button
     LED indicator
     Sends low battery signals
     Transmits periodic supervisory signals
     Easy installation