Digital astro timer for DIN rail, 1 channel, weekly program, DCF or GPS radio control with external antenna possible, astronomical switching function, position data programmable via coordinates or country city list, astro pulse, 3 different twilight areas adjustable, external input, 3 special programs, width 2 HP, app programming possible, secure transmission via optional Bluetooth Low Energy OBELISK top3, maximum security against manipulation, timer programs can only be transferred from the app to the clock if the Bluetooth OBELISK top3 is plugged into the clock, 100% compatible with top2, 600 watt LED power, 800 amps/200 microseconds inrush current, 0.8 watt standby power, DuoFix plug-in terminals, power reserve and programmed summer/winter time change, OBELISK interface for PC programming