Cal-Royal - DB9000 - Touchscreen Electronic Deadbolt - Compatible with Apple and Android - Grade 2 - Satin Nickel 40 Keys this optical light source is

this optical light source is the perfect tool for providing a stable light source for single mode fiber measurements

when the ignition is turned on with the key

With a wide field of view

Bolt Length Long Bolt extended by 3/4" on both sides

Cal-Royal - DB9000 - Touchscreen Electronic Deadbolt - Compatible with Apple and Android - Grade 2 - Satin Nickel 40 Keys this optical light source isThe Cal Royal DB9000 is a Grade 2 electronic touchscreen deadbolt designed for both residential and standard duty commercial applications. It combines modern aesthetics with robust security. Its digital touchscreen interface allows for keyless entry, while Bluetooth Low Energy (BLE) technology enables management via the K3 (Apple) and K3+ (Android) apps. Users can unlock doors using smartphones, RFID cards, key fobs, or traditional keys. An optional