Thanks to the 2.4 GHz WIFI wireless communication system, any smart device with the ability to connect to 2.4 GHZ WIFI and work in a browser is enough to display a web page, update the schedule and manage it.The built-in GLONASS/GPS module allows you to ensure time synchronization with an accuracy of up to a second. Two built-in electromechanical relays allow switching the load of AC and DC, with a voltage of 24/220 V. External antenna connectors allow installation in closed iron cabinets.