Designed for operation with IEEE 802.15.4 wireless access points & sensor networking, the ZB110 provides secure and robust two-way communications up to 100m between nodes, with routing over multiple nodes for larger networks and longer distances. Additional security and redundancy is provided with encryption and alternative routing of messages in the event of a single node failure. The ZB110 is a low power device that can remain dormant for long periods, and then ''wake up'' on an event-driven basis, or at pre-programmed intervals. The ZB110 offers users flexible configuration via six customisable keys, and options such as a small electronic accelerometer, which measures travel in all three directions, and an optional built-in position location engine, which calculates its position relative to fixed access points by triangulation, using a distributed computational algorithm developed by IDC. Other options include a temperature/humidity sensor and internal sounder.