Yale Real Living Key Free Touchscreen Deadbolt, designed to integrate seamlessly into the digital home, provides a significant increase in security as it eliminates the most vulnerable part of the lock: the cylinder - Absence of the cylinder provides a "clean" appearance, yet means that lock picking or bumping are virtually impossible - In the unlikely event the batteries die, a 9V battery provides enough power to enter the code and gain access to the lock - Features: Available in both durable acrylic touchscreen or simple, elegant, tamper-resistant keypad, Illuminated touchscreen and keypad for night time access - For use on all standard interior and exterior doors - Tapered bolt accommodates misaligned doors - Available in ZigBee or Z-Wave configurations - No need to ever re-key, just set up a NEW access code - Latch operated from outside by electronic touchscreen interaction, or inside by T-turn - New Key Free, Easy to Use, Install & Program - Voice-guided programming feature so you never have to search for an instruction manual - Weather resistent durable touchscreen - Interference alarms for tamper and wrong code attempts