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  • SECO-LARM SK-B141x-Q — SL Access App User Manual

    September 08, 2026 3 min read

    User manual for the SL Access app, used with SECO-LARM ENFORCER Bluetooth Access Controllers (SK-B141x-Q series) for hands-free, smartphone-based door access.

    Full text manual (for reference)

    User guide for the SL Access™ app, used with SECO-LARM ENFORCER® Bluetooth® Access Controllers (SK-B141x-Q series) to provide streamlined, hands-free access control for building managers and users.

    What You Need

    • An ENFORCER Bluetooth Access Controller (various models available, such as SK-B241-PQ).
    • A smartphone with Bluetooth LE 4.0.
    • The SL Access app (supports iOS 11.0+ or Android 5.0+).
    • Optional: a proximity card or key fob, if your device includes a proximity reader.

    Privacy: No data or personal information is shared with SECO-LARM or any other party by the SL Access app, and none is uploaded to the cloud.

    Getting Started

    1. Download and install the SL Access app from your device's app store.
    2. Set your smartphone to automatically download app updates so you always have the latest version.
    3. The app appears in your device's default language if available; otherwise it defaults to English.

    Home Screen Elements

    • Login icon, Device Name, and Settings icon.
    • Current Device Distance — a relative number based on Bluetooth signal strength.
    • Locked icon (tap to unlock).
    • Auto selector and Auto Proximity Range setting.
    • App version.

    Bluetooth must be enabled and the device must be in range. Practical Bluetooth range is around 60 ft (20m), less with obstacles or interference. If the app continues to show "Searching…" move closer to the device or exit and reopen the app.

    Choosing a Device

    The device with the strongest signal appears in black text at the top of the screen. If your desired device isn't shown, tap that area and select it from the popup. Once selected, its name turns gold to confirm the selection.

    Logging In

    1. Tap the Login icon (top left).
    2. Enter the User ID and Passcode assigned by your administrator, then tap Confirm.
    3. A short beep and a "You are now logged in" popup confirm success.

    Note: The Login icon remains visible even after logging in — there's no persistent visual indicator that you're logged in. You can also enter your passcode directly on the keypad (if the device has one) followed by the "#" key to unlock the door.

    Basic Operation

    Ensure the correct device appears at the top of the home screen, then press the center "Locked" button. The icon changes to "Unlocked" and the door unlocks for a duration set by the administrator. The icon display lasts about 5 seconds, which may not match the actual unlock duration.

    Auto (Hands-Free) Operation

    Select "Auto" at the bottom of the home screen to automatically unlock the door when your phone is within the configured proximity range.

    • The app must be loaded and the phone screen on for automatic unlocking to work.
    • If you have more than one keypad/reader, ensure the correct one is connected.
    • Adjust the proximity range carefully in Settings to avoid accidental unlocking.

    Settings

    Tap the Settings icon on the home page (Auto must be turned off to access Settings). From here you can:

    • Set the Auto Proximity Range.
    • Access Help, which links to SECO-LARM's support page for this manual and other help.
    • View Legal Notices and Privacy Policy.
    • View About / app version / SECO-LARM contact info.

    Setting Auto Proximity Range

    1. On the Settings page, tap "Auto Proximity Range."
    2. Hold your phone at the approximate distance where you'd like automatic unlock to trigger, and note the "Current Device Distance" number shown on the home screen.
    3. Move the slider for "Auto Proximity Range" to that noted number.

    Note: This setting applies only to the app's Auto Unlock feature and has no effect on the range of proximity cards/fobs.

    Troubleshooting

    Symptom Fix
    Device area says "Searching…" Make sure your phone's Bluetooth is turned on; move closer to the device; close and restart the app.
    Can't log in Double-check your username spelling/case/spacing and passcode; contact your device administrator for help.
    The "Auto" unlock is not working Ensure you are within the set proximity range; the app must be loaded and the phone screen must remain on while approaching the device.

    Warranty & Notice

    SECO-LARM's policy is one of continual development; specifications are subject to change without notice. SECO-LARM is not responsible for misprints. All trademarks are the property of SECO-LARM U.S.A., Inc. or their respective owners.

    SECO-LARM U.S.A., Inc. — 16842 Millikan Avenue, Irvine, CA 92606 | (949) 261-2999 / (800) 662-0800 | www.seco-larm.com