The Laserworld SAFETY Unit - Laser E-Stop is a laser safety device that allows you to shut off laser projectors by using the interlock connection interface. The Laserworld safety Unit - Laser E-Stop can be connected to the RJ45/RS-232 interlock interface of a laser projector. Built-in key switch, without emission LED. Including 5m interlock connection cable. All Safety Units have RJ45 to DB9/RS232 adapters included to suit our latest ranges of lasers with RJ45/Ethercon interlocks as well as the traditional DB9/RS232 interlocks Accessories - including 5m interlock connection cable; DB9/RS232 to RJ45 (Ethernet Type) adapter; key Weight 0.5 kg This is an essential piece of hardware for any live events or laser shows where guest/customer priority is essential and instant laser shutdown is required and demanded.