24* DSC PG9303 POWERG Slimline Wireless Door/Window Sensors FAST FREE SHIPPING a

24 DSC PG9303 POWERG Slimline Wireless. 24DSC PG9303 POWERG Slimline Wireless Door/Window Sensors. Uses PowerG 128‑bit AES encrypted communication. Works with DSC and Qolsys systems that support PowerG.