Smart Alarm gateway and internal siren (95dB) with up to 80-meter open field Zigbee transmission (3.0) Requires WiFi connection. Mains powered 5V 1A (includes adaptor).Supports up 60 devices including other Link2Home Zigbee devices. Features: INTERNAL ALARM AND GATEWAY: Add additional devices to your system with an additional gateway or build your own kit. Add up 60 sub devices EASY TO SET UP & INSTALL: Link to your Link2home Smart Home Alarm straight out of the box, allowing you to customise your system with 60 accessories; Easy to install on walls & in corners with no tools required EXTENSIVE 100 M WIRELESS ZIGBEE RANGE: Protect your garage and outbuildings with our 100 m wire-free range. Zigbee Technology means the more devices you add the stronger the signal becomes thanks to its Mesh network SECURE ENCRYPTION: The latest technology to make sure your home stays secure and protected BETTER BATTERY LIFE: Zigbee technology means the device uses less power compared to other devices pro