DSC WS4939 4-Button Wireless Keyfob FAST FREE SHIPPING a

DSC WS4939 4-Button Wireless Keyfob. 1 DSC WS4939 4-Button Wireless Keyfob. DSC WS4939 4-Button Wireless Keyfob A4 GB. Works with DSC wireless receivers and panels like PowerSeries. Panic Alarm Delay: 3-second hold to reduce false alarms.