• ← Back to Support

    EZCODE / SUPPORT

    R690

    Finger-worn ring scanner
    Setup guide

    EC-R690B manual · Version W2501.
    Match the product photo and model label before using these settings.

    EZCODE R690 black finger-worn barcode scanner
    Scan only the setting you need. Use your scanner, not your phone camera.
    Save to your phone: open a group image, then touch and hold to save it. Enlarge before scanning, or print the saved image.

    Basic settings

    Use reset only if needed. It removes custom settings.

    Factory reset

    Factory reset setting code

    Restores initialization settings. Reconnect the scanner afterwards.

    Version information

    Version information setting code

    Read the device version for technical support.

    Open / save basic settings image ↗

    Scan mode

    Choose ONE scanning mode.

    Manual trigger

    Manual trigger setting code

    Press the scanner button to scan.

    Auto-sensing

    Auto-sensing setting code

    Scan automatically when a barcode is presented.

    Open / save scan mode image ↗

    Barcode types

    Each setting controls one barcode family. Choose only the setting you need.

    2D is not QR-only. Enable 2D allows supported 2D formats, not just QR codes. Avoid disabling both families. Open the full-size image before scanning.

    Enable 1D

    Enable 1D setting code

    Allow supported 1D barcode types.

    Disable 1D

    Disable 1D setting code

    Stop reading 1D barcodes.

    Enable 2D

    Enable 2D setting code

    Allow supported 2D barcode types.

    Disable 2D

    Disable 2D setting code

    Stop reading 2D barcodes.

    Open / save barcode types image ↗

    Bluetooth pairing

    Scan Step 1, then Step 2. Finish in your device settings.

    After both scans, open Bluetooth settings and select Barcode Scanner HID. A beep confirms the connection. Alternatively, hold the trigger for 10 seconds to enter pairing mode. SPP and BLE are separate modes, not further pairing steps.

    Step 1 - HID mode

    Step 1 - HID mode setting code

    Standard Bluetooth keyboard input.

    Step 2 - Pairing

    Step 2 - Pairing setting code

    Then select Barcode Scanner HID on your device.

    Open / save bluetooth pairing image ↗

    2.4G receiver

    The original receiver is paired at the factory.

    The green indicator flashes during pairing. A steady blue indicator confirms pairing. Re-pair only if the original connection is not working.

    Step 1 - 2.4G mode

    Step 1 - 2.4G mode setting code

    Plug the USB receiver into your host. Use if reconnection is needed.

    Step 2 - Re-pair

    Step 2 - Re-pair setting code

    Match Enforced: use if data still does not reach the host.

    Open / save 2.4g receiver image ↗

    POS & BLE modes

    Advanced alternatives. Use only with compatible software.

    Bluetooth SPP

    Bluetooth SPP setting code

    Select Barcode Scanner SPP on your device. A driver may be required.

    Virtual COM

    Virtual COM setting code

    Plug in the 2.4G receiver, then scan. Use the supplier driver if needed.

    Bluetooth BLE

    Bluetooth BLE setting code

    Use only with a compatible Bluetooth Low Energy application.

    Open / save pos & ble modes image ↗

    iOS keyboard

    On-screen keyboard controls for Bluetooth HID.

    Show / hide keyboard

    Show / hide keyboard setting code

    Scan this code to toggle the iOS keyboard.

    Double-click: on

    Double-click: on setting code

    Enable the double-click keyboard shortcut.

    Double-click: off

    Double-click: off setting code

    Disable the double-click keyboard shortcut.

    Open / save ios keyboard image ↗

    Beep volume

    Choose ONE volume setting.

    Low

    Low setting code

    Low beep volume.

    Medium

    Medium setting code

    Medium beep volume.

    High

    High setting code

    High beep volume.

    Off

    Off setting code

    Mute the scanner beep.

    Open / save beep volume image ↗

    Transfer speed

    Choose ONE output speed for your host.

    Low

    Low setting code

    Low transmission speed.

    Medium

    Medium setting code

    Medium transmission speed.

    High

    High setting code

    High transmission speed.

    Open / save transfer speed image ↗

    Data & inventory

    Upload and verify stored scans before clearing data.

    Normal mode

    Normal mode setting code

    Send scans to the connected host in real time.

    Inventory mode

    Inventory mode setting code

    Store scanned data in the scanner.

    Upload stored data

    Upload stored data setting code

    Transfer saved scans to the connected host.

    Count stored scans

    Count stored scans setting code

    Display the stored barcode quantity.

    Clear stored data

    Clear stored data setting code

    DELETES saved scans. Upload and verify first.

    Open / save data & inventory image ↗

    Sleep & power

    Choose ONE sleep time. Power off is a separate action.

    1 minute

    1 minute setting code

    Sleep after 1 minute of inactivity.

    5 minutes

    5 minutes setting code

    Sleep after 5 minutes of inactivity.

    10 minutes

    10 minutes setting code

    Sleep after 10 minutes of inactivity.

    30 minutes

    30 minutes setting code

    Sleep after 30 minutes of inactivity.

    Never sleep

    Never sleep setting code

    Disable automatic sleep.

    Power off now

    Power off now setting code

    Switch the scanner off immediately.

    Open / save sleep & power image ↗

    End-of-scan character

    Choose ONE ending character for your application.

    CR

    CR setting code

    Carriage return.

    LF

    LF setting code

    Line feed.

    CR + LF

    CR + LF setting code

    Carriage return and line feed.

    Tab

    Tab setting code

    Tab after each scan.

    No suffix

    No suffix setting code

    No ending character.

    Open / save end-of-scan character image ↗

    Keyboard language

    Match the scanner to the host keyboard layout.

    English

    English setting code

    English keyboard layout.

    German

    German setting code

    German keyboard layout.

    Italian

    Italian setting code

    Italian keyboard layout.

    Russian

    Russian setting code

    Russian keyboard layout.

    Japanese

    Japanese setting code

    Japanese keyboard layout.

    French

    French setting code

    French keyboard layout.

    International

    International setting code

    Windows only.

    Open / save keyboard language image ↗
    Advanced data formatting

    For POS integration only. Configure a prefix or suffix first, then scan the required characters in order. Do not scan the character tables as ordinary setup codes.

    Add a prefix / suffix

    Scan ONE setup code, then characters from the appendix.

    Set to add prefix

    Set to add prefix setting code

    Then scan the desired characters in order. Maximum 32 bytes.

    Set to add suffix

    Set to add suffix setting code

    Then scan the desired characters in order. Maximum 32 bytes.

    Open / save add a prefix / suffix image ↗

    Hide leading / trailing data

    Scan ONE setup code, then choose ONE length (1-4 bytes).

    Step 1 - Hide prefix

    Step 1 - Hide prefix setting code

    Hide characters at the beginning of the barcode.

    Step 1 - Hide suffix

    Step 1 - Hide suffix setting code

    Hide characters at the end of the barcode.

    Step 2 - 1 byte

    Step 2 - 1 byte setting code

    Choose one length after the setup code.

    Step 2 - 2 bytes

    Step 2 - 2 bytes setting code

    Choose one length after the setup code.

    Step 2 - 3 bytes

    Step 2 - 3 bytes setting code

    Choose one length after the setup code.

    Step 2 - 4 bytes

    Step 2 - 4 bytes setting code

    Choose one length after the setup code.

    Open / save hide leading / trailing data image ↗
    Character table - 1 · 24 codes

    Advanced: scan only after Add prefix / suffix setup. Tap a code to open the full-size sheet before scanning.

    SOH

    SOH setting code

    STX

    STX setting code

    ETX

    ETX setting code

    EOT

    EOT setting code

    ENQ

    ENQ setting code

    ACK

    ACK setting code

    BEL

    BEL setting code

    Backspace

    Backspace setting code

    Tab

    Tab setting code

    LF

    LF setting code

    VT

    VT setting code

    FF

    FF setting code

    CR

    CR setting code

    F1

    F1 setting code

    F2

    F2 setting code

    F3

    F3 setting code

    F4

    F4 setting code

    F5

    F5 setting code

    F6

    F6 setting code

    F7

    F7 setting code

    F8

    F8 setting code

    F9

    F9 setting code

    F10

    F10 setting code

    F11

    F11 setting code
    Open / save character table - 1 image ↗
    Character table - 2 · 24 codes

    Advanced: scan only after Add prefix / suffix setup. Tap a code to open the full-size sheet before scanning.

    F12

    F12 setting code

    SUB

    SUB setting code

    Esc

    Esc setting code

    FS

    FS setting code

    GS

    GS setting code

    RS

    RS setting code

    US

    US setting code

    Space

    Space setting code

    !

    ! setting code

    "

    " setting code

    #

    # setting code

    $

    $ setting code

    %

    % setting code

    &

    & setting code

    '

    ' setting code

    (

    ( setting code

    )

    ) setting code

    *

    * setting code

    +

    + setting code

    ,

    , setting code

    -

    - setting code

    .

    . setting code

    /

    / setting code

    0

    0 setting code
    Open / save character table - 2 image ↗
    Character table - 3 · 24 codes

    Advanced: scan only after Add prefix / suffix setup. Tap a code to open the full-size sheet before scanning.

    1

    1 setting code

    2

    2 setting code

    3

    3 setting code

    4

    4 setting code

    5

    5 setting code

    6

    6 setting code

    7

    7 setting code

    8

    8 setting code

    9

    9 setting code

    :

    : setting code

    ;

    ; setting code

    <

    < setting code

    =

    = setting code

    >

    > setting code

    ?

    ? setting code

    @

    @ setting code

    A

    A setting code

    B

    B setting code

    C

    C setting code

    D

    D setting code

    E

    E setting code

    F

    F setting code

    G

    G setting code

    H

    H setting code
    Open / save character table - 3 image ↗
    Character table - 4 · 24 codes

    Advanced: scan only after Add prefix / suffix setup. Tap a code to open the full-size sheet before scanning.

    I

    I setting code

    J

    J setting code

    K

    K setting code

    L

    L setting code

    M

    M setting code

    N

    N setting code

    O

    O setting code

    P

    P setting code

    Q

    Q setting code

    R

    R setting code

    S

    S setting code

    T

    T setting code

    U

    U setting code

    V

    V setting code

    W

    W setting code

    X

    X setting code

    Y

    Y setting code

    Z

    Z setting code

    [

    [ setting code

    \

    \ setting code

    ]

    ] setting code

    ^

    ^ setting code

    _

    _ setting code

    `

    ` setting code
    Open / save character table - 4 image ↗
    Character table - 5 · 24 codes

    Advanced: scan only after Add prefix / suffix setup. Tap a code to open the full-size sheet before scanning.

    a

    a setting code

    b

    b setting code

    c

    c setting code

    d

    d setting code

    e

    e setting code

    f

    f setting code

    g

    g setting code

    h

    h setting code

    i

    i setting code

    j

    j setting code

    k

    k setting code

    l

    l setting code

    m

    m setting code

    n

    n setting code

    o

    o setting code

    p

    p setting code

    q

    q setting code

    r

    r setting code

    s

    s setting code

    t

    t setting code

    u

    u setting code

    v

    v setting code

    w

    w setting code

    x

    x setting code
    Open / save character table - 5 image ↗
    Character table - 6 · 7 codes

    Advanced: scan only after Add prefix / suffix setup. Tap a code to open the full-size sheet before scanning.

    y

    y setting code

    z

    z setting code

    {

    { setting code

    |

    | setting code

    }

    } setting code

    ~

    ~ setting code

    DEL

    DEL setting code
    Open / save character table - 6 image ↗

    Connection tips

    Connected but no data? Check the blue indicator. In Inventory mode, scans are stored; upload stored data, or choose Normal mode for real-time output.

    Moving to another device? Remove the old Bluetooth pairing, then follow the Bluetooth pairing steps.

    Garbled characters? Match the keyboard language to your host. The International layout is for Windows only.

    USB cable: connecting it to the host switches to wired mode and charging; unplugging returns to wireless mode.

    ← Back to Support
Cookie Use
We use cookies to ensure a smooth browsing experience. By continuing we assume you accept the use of cookies.
Learn More