It's a Wireless World
The NESS RK4 Radio Key & Radio Interface Kit provides wireless Arming, Disarming and Aux functions for Ness DPlus and D8x/D16x control panels. In addition, the receiver provides the interface for optional wireless detection devices.
4 wire data connection to the control panel.
Includes 1 x 100-200 Ness radio Interface, 2 x 106-167 Ness RK4B Radio Keys.
Compatible with Ness DPlus D8x/D16x control panels Rev 4.0 and later.
On D8x/D16x Rev3.x and older, use the 106-178 RK3 Radio key instead.