Ajax SpaceControl S Jeweller is a compact, hand-held wireless key fob designed to easily and remotely control an Ajax security system. It allows users to arm or disarm the system and, if help is needed, send an emergency alert to the security company. Integration with Ajax apps makes the key fob a great option for simple and convenient security management. This version of the device features a silicone cover over the light indicators, which helps protect it from humidity.