Orbis ASTRO UNO BLUETOOTH Astronomical Programmer

2-Circuit Astro Uno Bluetooth Timer Switch, for programming and reading via Smartphone, for programming via mobile phone. Up to 40 daily or weekly programs. Adjustable correction of astronomical timing by up to ± 9 hours and 59 minutes. REDUC function to avoid overlap between astronomical and fixed operations. Large backlit display with contrast adjustment. Features 4 periods between two dates with special programming, effectively making it an annual timer switch. Temporary or permanent manual activation or deactivation. Simple menu-guided programming in different languages. Contact operation hours counter. Keypad lock with password protection. Replaceable backup battery for up to 4 years. In case the battery runs out, it has a high-capacity capacitor that retains programming in the memory when there is a power outage.