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  • August Smart Lock Pro (ASL-03) — Product Specifications

    September 08, 2026 2 min read

    Product specification sheet for the August Smart Lock Pro (ASL-03), a Z-Wave and Bluetooth retrofit smart lock for professional installers.

    Full text manual (for reference)

    Product specification sheet for the August Smart Lock Pro (ASL-03) — a Z-Wave and Bluetooth retrofit smart lock designed for professional installers.

    Overview

    The August Smart Lock Pro is a Z-Wave Plus retrofit smart lock that gives homeowners full control of their front door. Homeowners can lock and unlock the door, grant keyless entry to family and friends, and monitor who comes and goes — all from their iOS or Android phone. It attaches directly to the existing deadbolt, so homeowners can continue using their existing keys. Installation takes less than 10 minutes and requires only a screwdriver.

    Key Features

    • Control and monitor from anywhere — lock/unlock, control keyless access, and track who comes and goes, all from your phone
    • DoorSense™ — confirms the door is fully closed and locked, not just latched
    • Control access for anyone — grant access for a few minutes, hours, or weeks
    • Auto-lock — locks automatically as you leave, so you never have to wonder if the door is locked
    • Auto-Unlock — detects your arrival and unlocks the door automatically
    • Keep your existing lock and keys — attaches to your existing deadbolt so everyone can still use their physical keys
    • Simple DIY installation — about 10 minutes with just a screwdriver
    • August app — available for Android, iOS, and Apple Watch®

    Included in the Box

    • August Smart Lock Pro
    • DoorSense™ Sensor
    • 4 AA Batteries
    • Lock Adapter & Mounting Hardware

    Requirements

    • Free August App for iOS or Android
    • Bluetooth®-ready smartphone
    • Single-cylinder deadbolt lock

    Available Colors

    Silver, Dark Gray

    Specifications

    Spec Value
    Model Name August Smart Lock Pro
    SKU AUG-SL03-M03-S03 (Silver), AUG-SL03-M03-G03 (Dark Gray)
    UPC 853984006236 (Silver), 853984006304 (Dark Gray)
    Description Z-Wave and Bluetooth Retrofit Smart Lock
    Model Number ASL-03
    Standards Bluetooth Specification v4.0 (Bluetooth Smart) and Z-Wave® Plus Certified
    Power Requirement 4 AA Batteries (included)
    Dimensions 3.4" (L) x 2.22" (W) x 3.4" (H)
    Device Weight 13.9 oz. (0.87 lbs)
    Warranty Two (2) year Limited Hardware Warranty

    The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. HomeKit™ requires an iPhone®, iPad®, or iPod touch® with iOS 8.1 or later. Z-Wave® and Z-Wave® Plus are registered trademarks of Sigma Designs and its subsidiaries.