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  • Ultraloq U-Bolt Pro — Bluetooth Fingerprint & Keypad Smart Deadbolt Specifications

    August 31, 2026 3 min read

    Full specifications and feature overview for the Ultraloq U-Bolt Pro Bluetooth-enabled fingerprint and keypad smart deadbolt.

    Full text manual (for reference)

    Product overview and specifications for the Ultraloq U-Bolt Pro — a Bluetooth-enabled fingerprint and keypad smart deadbolt with six ways to unlock, from U-tec.

    What Is the U-Bolt Pro?

    U-Bolt Pro is designed as a secure and versatile deadbolt, offering six ways to unlock with or without a smartphone: Smartphone App, Fingerprint, Passcode, Proximity Unlock, Magic Shake, and Mechanical Key. With the optional Bridge WiFi adaptor, users can control door access remotely and monitor activity while away from home.

    Key Features

    • Bluetooth Smart Connectivity — unlock the door using the U-tec App on your smartphone
    • Auto Unlock — unlocks automatically when you arrive at the door with your phone in your pocket
    • 360° Live Fingerprint ID Unlock — fast, accurate detection from any angle; AI fingerprint algorithm learns and improves over time
    • Solid and Resistant — durable zinc alloy casing with weatherproof exterior assembly
    • Share Temporary Codes and Ekey — create temporary access codes/keys for guests in the U-tec App
    • Auto Lock — relocks automatically for added security and convenience
    • Magic Shake — shake your phone to unlock the door
    • Easy Setup and DIY Installation — no wiring required, no drilling needed for American standard doors
    • Mechanical Key — backup mechanical key for emergency override
    • Long Battery Life — 4 AA batteries, up to 8,000 access cycles, with low battery alarm
    • Front Lock Micro-USB Emergency Power — use an external battery to unlock the door if the batteries die
    • Anti-Peep Numeric Keypad — user-defined 4–8 digit codes with anti-peep, backlit design

    More Features

    • Remote Access — with Bridge, unlock or share temporary Ekeys and codes to guests remotely
    • Advanced Dual Data Encryption — 128-bit AES data encryption plus Dynamic Key as a second layer of protection
    • Two Locking Status — Auto Lock and free passage modes
    • Tri-color LED Indicator — shows authorized/denied access, Bluetooth connectivity status, battery, and locking status

    Use Cases

    • Home — ideal for front, back, and side entry doors
    • Airbnb Host — share temporary access to guests for a specific time period without being present, via Bridge
    • For Everyone — works with or without a smartphone; codes are convenient for children and elderly family members
    • Business — control and monitor room access; delete users instantly in the U-tec App instead of replacing locks/keys when employees leave

    U-tec App Capabilities

    • Share Ekey & Code — grant access for specific dates or times
    • Keyless Entry — unlock the door with your smartphone
    • Manage Users — see who has access and how; add or delete users
    • Log Record — view a log of who entered and when, from your smartphone

    Optional Accessory: Bridge WiFi Adaptor

    The Bridge WiFi Adaptor lets you open the U-Bolt Pro anytime, from anywhere. It instantly lets friends and guests into your home remotely, shares temporary access to guests, and sends instant alerts every time someone unlocks the door. You can view users and logs no matter where you are. The Bridge uses Wi-Fi to connect to your home network and Bluetooth to connect to the smart lock. Works with the U-tec App for iOS and Android, and with Alexa, Google Assistant, and IFTTT. There is no monthly service fee.

    Specifications

    Model U-Bolt Pro
    Connectivity Bluetooth, WiFi (Ultraloq Bridge required)
    Identification Mode Fingerprint, Code, and Bluetooth
    Fingerprint Sensor 360° Live Capacitive Sensor
    Code User-defined 4–8 digit
    Code Capacity 60
    User Capacity 60
    Keypad Backlight Yes
    Temporary Code or Ekey Yes
    Compatible Smartphone iOS and Android
    Remote Access Ultraloq Bridge WiFi adaptor required
    Mechanical Key Override Yes
    Micro-USB Backup Power Interface Yes
    Working Voltage 6V (4 x Alkaline AA batteries)
    Working Temperature Outside lock body: -22°F to 149°F (-30°C to 65°C); inside lock body: 14°F to 131°F (-10°C to 55°C)
    Battery Life Up to 1 year (8,000 access cycles)
    LED Indicator Color Red, green, and blue
    Compatible Smart Home Ecosystem Alexa, Google Assistant, IFTTT (Ultraloq Bridge required)
    Hardware Type Deadbolt
    Door Prep 2.125" (54mm) diameter face hole & 1" (25mm) diameter latch hole
    Door Thickness 1.3" – 1.96" (33mm – 50mm)
    Backset Adjustable to 2.375" or 2.75" (60mm or 70mm)
    Door Handing Reversible
    Case Material Strong zinc alloy
    Finish Combination of black and silver
    Dimensions Front panel: 2.95 x 2.95 x 1.22" (75 x 75 x 31mm); back panel: 2.95 x 4.92 x 1.39" (75 x 125 x 35.3mm)
    Weight 3.3 lb / 1.5 kg

    U-tec Group Inc. — 41656 Christy Street, Fremont, CA 94538. www.u-tec.com