Sifely Model O Smart Deadbolt Instruction Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your Sifely Model O Smart Deadbolt. This smart lock offers multiple access methods including fingerprint, keypad code, mobile app, fob, and traditional physical key, enhancing security and convenience for various property types.

2. Product Features

• Versatile & Fits Most Doors: Compatible with single & multi-family homes, apartments, and rentals. Designed for easy DIY installation with a screwdriver, supporting both left and right-hand doors.
• Multiple Ways to Unlock: Access via fingerprint, keypad code, mobile app, fob, or physical key. Supports over 100 fingerprints and 100 codes, ideal for various users.
• Smart App Control: Manage codes, review access logs, share eKeys, and set schedules using the free mobile app or web portal. Remote functionality requires a separately sold Sifely Gateway.
• Auto-Lock & Security Modes: Features automatic locking after each entry, one-touch locking (#), privacy mode, and passage mode. Includes anti-peep code functionality and low battery alerts.
• Alexa & Google Compatible: Integrates with smart speakers for voice control (e.g., “Alexa, lock the door”). Requires a Sifely Gateway for smart home integration.

3. Package Contents

Verify that all components are present before beginning installation:

• Front Panel
• Back Panel
• Mounting Plate
• Manuals (Installation Guide, Quick Start Manual)
• Installation Screws (various sizes for different door thicknesses)
• 2 Physical Keys
• 2 Key Fobs

Image: All components included in the Sifely Model O Smart Deadbolt package.

4. Setup and Installation

The Sifely Model O Smart Deadbolt is designed for straightforward installation. A Phillips head screwdriver is the only tool required. Ensure you have 4 AA batteries (not included) for operation.

4.1. Door Compatibility

Ensure your door meets the following specifications:

• Door Thickness: 1⅜" ~ 2³/₁₆" (35mm - 55mm)
• Bore Hole Diameter: 2⅛" (54mm)
• Bore Hole Backset: 2⅜" or 2¾" (60mm or 70mm)

Image: Door compatibility diagram with required measurements.

4.2. Installation Steps

For a visual guide, please refer to the official installation video below. It is strongly recommended to install the lock while the door is open/ajar. Do not close your door until the batteries are inserted and calibration is complete.

1. Install the Bolt: Ensure the 'UP' arrow on the deadbolt is facing upwards. Insert the bolt into the door hole and secure it with the provided screws. Check if the T-shaped hole is centered; adjust if necessary by rotating the bolt.
2. Install Exterior Keypad: Ensure the bump on the tailpiece is facing upwards. Slide the tailpiece into the T-shaped hole on the deadbolt. Route the wire cable under the deadbolt. The exterior keypad should face outside.
3. Install Mounting Plate: Thread the cable through the hole at the bottom of the mounting plate. Slide the tailpiece from the exterior keypad into the corresponding hole on the mounting plate. Align the guide posts of the mounting plate with the holes on the exterior keypad. Secure the mounting plate using the appropriate screws based on your door thickness (refer to the provided scale card).
4. Attach Wire Cable to Interior Lock: Remove the battery cover from the interior lock body. Connect the cable from the exterior keypad to the designated slot on the interior lock.
5. Install Interior Lock: Insert the tailpiece on the exterior keypad into the T-shaped slot at the back of the interior lock. Tuck any excess cable into the door hole. Secure the interior lock to the mounting plate using the provided screws.
6. Perform Calibration: Insert 4 AA batteries into the interior lock. On the exterior keypad, enter "123456#" to initiate the door handing process. The lock will calibrate itself. When the bolts stop moving, the process is complete.

5. Operating Instructions

Your Sifely Model O Smart Deadbolt offers multiple convenient ways to lock and unlock your door.

5.1. Unlocking Methods

• Fingerprint: Place your registered finger on the fingerprint sensor. The lock will unlock if the fingerprint is recognized. The AI-powered sensor learns and gets faster with each use.

Image: Fingerprint unlocking in action, highlighting support for multiple users.
• Keypad Code: Enter your programmed 4-6 digit code on the keypad, followed by the '#' key. The lock will unlock.


Image: App interface for generating custom, timed, one-time, and recurring PIN codes.

• Fob: Tap the Sifely fob against the keypad. The lock will unlock.


Image: Various fob types for unlocking the smart deadbolt.

• Mobile App: Use the Sifely app on your smartphone to remotely unlock the door. Remote unlocking requires a Sifely Gateway (sold separately).

Image: Sifely app interface for remote control and monitoring.
• Physical Key: In case of battery depletion or electronic malfunction, use the provided physical key to manually unlock the deadbolt.

5.2. Locking Methods

• Auto-Lock: The lock is set to auto-lock by default after a short delay following each unlock. This feature can be configured in the Sifely app.
• One-Touch Lock: From the outside, press and hold the '#' key on the keypad to instantly lock the door.
• Interior Knob: From the inside, rotate the interior knob to lock or unlock the deadbolt.

Image: Auto-lock, one-touch locking, and privacy/passage modes explained.

5.3. Smart Home Integration

The Sifely Model O Smart Deadbolt is compatible with Amazon Alexa and Google Assistant for voice control, provided a Sifely Gateway is connected and configured.

Image: Voice control with Alexa and Google Assistant.

6. Maintenance

• Battery Replacement: The lock requires 4 AA batteries. Replace all batteries when a low battery alert is received. The lock retains all settings during battery replacement.

Image: Battery life and low battery alert feature.
• Cleaning: Wipe the keypad and lock body with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the finish or electronic components.
• Regular Checks: Periodically check that all screws are tight and the lock operates smoothly.

7. Troubleshooting

• Lock not responding: Check battery levels. Replace batteries if low. Ensure the interior and exterior units are properly connected.
• Fingerprint not recognized: Ensure your finger is clean and dry. Try re-registering your fingerprint in the app.
• Keypad not lighting up: Tap the keypad to activate it. If it still doesn't light up, check battery connections.
• Remote access not working: Verify that your Sifely Gateway is properly connected to Wi-Fi and paired with the lock. Check your internet connection.
• Door handing error during calibration: Ensure the deadbolt is installed correctly and the tailpiece is properly aligned. Repeat the calibration process.

8. Specifications

• Brand: Sifely
• Model Name: Sifely Model O Deadbolt
• Lock Type: Biometric, Combination Lock, Deadbolt, Keypad
• Material: Aluminum, Zinc
• Color: Silver
• Finish Type: Satin Nickel
• Item Dimensions (L x W x H): 6.3 x 2.6 x 1.9 inches
• Item Weight: 2 Pounds
• Power Source: 4 AA Batteries (not included)
• Connectivity Protocol: Bluetooth, Wi-Fi (with optional Gateway)
• Controller Type: App Control, Keypad, Fingerprint, FOB, Code, Voice Control (via Alexa & Google), Amazon Alexa, Google Assistant, iOS, iPadOS, Android, Hand Control, Touch
• Special Features: Auto-Lock, Back-Lit Keypad, Fingerprint, Fob Unlock, Heat Resistant, One-Touch Lock, Passcode Unlock, Resettable, Weather Resistant

9. Warranty and Support

For warranty information and technical support, please refer to the official Sifely website or contact Sifely customer service directly. You can also visit the Sifely Store on Amazon for additional resources.