Wireless key fob remote control for the Ajax security system — four buttons that fit on a keychain and let users arm, disarm, switch to Night Mode, or send a silent panic alert without reaching for a phone or walking to the keypad. SpaceControl is the device family members and staff actually use day-to-day: park in the driveway, click “Disarm,” walk in; leave the office, click “Arm Away,” lock up; press and hold Panic in a threatening situation and the hub broadcasts a silent alarm to your monitoring service and personal contacts simultaneously. Every transmission is two-way — when you press a button, the fob’s LED confirms the hub received the command and acted on it, eliminating the “did it work?” uncertainty of older one-way remotes. It pairs with the Ajax Hub 2 over the encrypted Jeweller radio protocol at distances up to 1,300m line-of-sight, runs up to 5 years on a single CR2032 battery, and uses frequency-hopping plus chip-level authentication to prevent jamming, signal replay, and clone-fob attacks that compromise cheaper RF remotes. Operates from -10°C to +40°C, with up to 50 fobs assignable per hub. Ideal for villa families, commercial staff, multi-tenant offices — any installation where users need fast access to system control without typing codes.