✅Remote socket allows the connection of optional tail call leads, pressure mats, etc. ✅Can be programmed to operate in a multitude of ways using a QT423 configurator ✅Connections provided for additional slave devices such as ceiling pulls, overdoor lights, slave infrared receivers and more. ✅Call follower sounder can be optionally used to inform staff that other calls are waiting when the system is in Night mode. ✅QT602RSM magnetic reset version also available., Manufacturer: C-Tec