The RTO-23 Wireless Range Extender can increase the range of a wireless sensor network by up to 300 meters line of sight, or up to 1000㎡ in a typical commercial / industrial environment. Data is automatically routed from wireless nodes in a mesh network through the range extender and back to the EpiSensor Gateway. The Wireless Range Extender includes an internal mains power supply which is designed to work over a wide range of voltages and on-board ZigBee wireless communications. The RTO-23 enclosure is fully waterproof, which is ideal for use in harsh industrial or outdoor environments. Note: the RTO-21 must be installed by a qualified electrician.