Dsc PowerSeries 2-Way Wireless Transceiver TR5164-433
Supports both 2-way and 1-way wireless devices
Supports 4 wire-free keypads WT5500
Supports 16 Wireless Keys (any combination of 1-way or 2-way wireless keys)
Supports 60 wireless zones on PC1864
8-partition support for 1-way wireless keys
Compatible with PC1616, PC1832 and PC1864 v4.6+