LED Indicator. Squire Inigma is a smart wireless access control system from Squire that uses Bluetooth communication. This key fob is needed to operate, power and communicate with the range of Inigma padlocks and cylinders via the app. The Inigma app bridges the communication between the Inigma server and these devices by synchronising the Inigma key fob with the Inigma app. This action updates the validity and status of the key fob and locks and whether the user has access rights or not at that time and provides an audit log of these communications.. Bluetooth enabled Inigma key fob. Works with an app. Used to power and communicate with an Inigma padlock or cylinder.