Accessible in black or silver end, the U400 is an entire lock meeting that features inside and exterior escutcheons, a deadbolt meeting, strike plates, mounting {hardware}, a chargeable lithium-ion battery pack, a person information, two keys, and drilling templates. It suits doorways which might be 1-3/8 to 2-1/8 inches thick, with a 1-1/2- or 2-1/8-inch bore gap diameter and a 2-3/8- or 2-3/4-inch backset.
The outside escutcheon has an IP65 weather-resistant score and measures 6.5 by 2.9 by 1.0 inches (HWD). It encompasses a 12-button contact display keypad and a biometric fingerprint scanner, with a keyway hidden behind a sliding panel. The underside edge holds a speaker and a USB-C port for fast charging and powering the lock with an influence provide if the battery runs out. Knowledge and Wi-Fi cables lengthen from the again of the escutcheon.
The inside escutcheon (Credit score: John R. Delaney)
The inside escutcheon measures 7.0 by 3.0 by 1.2 inches and has a thumbturn knob for manually locking and unlocking the door. A chargeable lithium-ion battery pack sits behind a detachable cowl, together with programming (set) and reset buttons. The battery pack will last as long as six months on a single cost, relying on utilization.
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The U400 may be unlocked utilizing the keypad, the fingerprint reader, voice instructions, and conventional keys. It has a Bluetooth radio for native entry however lacks a Wi-Fi radio. As a substitute, it requires a suitable Thread-enabled Matter controller, reminiscent of an Apple HomePod, an Amazon Echo, a Google Nest Hub, or a SmartThings Hub, so as to add it to your private home community and join it with different gadgets. As soon as linked, the lock may be opened with Apple House Key and Samsung Pockets Digital House Key, and it provides hands-free unlocking when used with Apple iPhones or Apple Watches that assist UWB. The U400 additionally helps NFC (Close to Discipline Communication), however you’ll should shell out $9.99 per NFC card, as they don’t seem to be included within the field.
For comparability, the Eufy FamiLock S3 Max provides built-in Wi-Fi plus Bluetooth, and helps Matter in addition to UWB auto-unlocking. As a inexpensive various, the Ultraloq Bolt Fingerprint ($199.99) lacks UWB know-how however nonetheless helps auto-unlocking through GPS and Bluetooth and works with all the most well-liked good residence platforms.

