ENERWAVE Z-Wave Wireless Plug, ON/OFF Switch for Lights & Small Appliances, ZWN-333M - Smart Meter Energy Monitor Feature Plug in wall outlet to enable remote control on floor/table lamp,fan,computer,TV from anywhere Remotely turn ON/OFF appliance via smartphone or computer apps after added to a z-wave gateway Compatible with any z-way certified gateway, can be controled in groups of multiple z-wave devices Smart meter enables real time energy consuption monitoring; Side-plug design for space efficiency one plug always-on AC receptacle, another Z-Wave enabled; z-wave acts as a wireless repeater