Time switch with built-in astronomical clock

The astronomical time switch is intended for the management of the electrical devices in relation to dawn and sunset times within the set geographical area, without the use of external sensors - Menu driven programming with instruction reading in the display - Models with one or two relay control outputs - Programming keys: 1 menu key - 2 setting and menu scrolling keys 1 data confirmation key - Calendar: year - month - day - hour and minutes - Yearly clock with calendar up to 31/12/2172 Clock accuracy: ± 1 s per day Dawn/sunset calculation accuracy: ± 1 min Programming resolution 1 min Charge reserve with lithium battery: approx. 6 years - Non-volatile memory - Automatic Standard Time/Daylight Saving Time change - Weekly and daily intervention programming - Daily dawn/sunset data update - Relay output operation hour-counter - Programming interruption (holiday)