1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Alacrity MJ-2020R 2D Industrial Barcode Scanner. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage.

The Alacrity MJ-2020R 2D Industrial Barcode Scanner, shown with its wireless charging stand.
2. Product Features
- High-Resolution Industrial Scan Engine: Equipped with a 1-megapixel optical lens for swift and accurate reading of various printed barcodes, including those on labels, mobile phones, and computer screens. Effective even with partially damaged, dirty, or poorly printed codes.
- Exceptional Signal Range: 433MHz RF wireless transmission up to 1968 feet (600 meters) in unobstructed environments and 656 feet (200 meters) with obstacles, suitable for large warehouses.
- Wireless Charging: Convenient wireless charging by placing the scanner on its stand.
- Wide Compatibility: No software installation required. Compatible with Windows, Mac OS, iOS, Android, and various software like QuickBooks, Word, and Excel.
- Industrial-Grade Durability: Robust ABS material provides shockproof capabilities, withstanding drops from 8 ft./2.4 m onto concrete. Integrated housing ensures dustproof functionality.
- Versatile Configuration Options: Supports hands-free intelligent sensor mode or trigger scan mode, adjustable vibration/buzzer settings, data storage/instant upload modes, multiple keyboard languages, and customizable prefix/suffix additions (including date and time).

Illustration of the Alacrity scanner's long-distance signal transmission capability, reaching up to 1968 feet in open air.
3. Setup
3.1 Package Contents
Before proceeding with setup, ensure all components are present:
- Alacrity MJ-2020R Barcode Scanner
- Wireless Charging Stand
- USB Cable
- User Manual

The Alacrity MJ-2020R barcode scanner, its wireless charging stand, USB cable, and user manual.
3.2 Connecting the Scanner
The scanner supports two wireless connection methods: Bluetooth and 433MHz wireless via the charging stand's dongle.

Diagram illustrating the two wireless connection methods: Bluetooth for short-range and 433MHz wireless dongle for long-range.
For Bluetooth connection, pair the scanner with your device. For 433MHz wireless, connect the stand's USB cable to your computer. The scanner will automatically connect to the dongle in the stand.

The scanner offers wide compatibility with various operating systems and devices via Bluetooth and 433MHz wireless.
3.3 Charging the Scanner
Place the scanner on the wireless charging stand to charge. The stand also acts as a receiver for the 433MHz wireless connection.

The Alacrity barcode scanner placed on its wireless charging stand, indicating charging status.

The multifunctional stand provides wireless charging and integrates the 433MHz wireless dongle.
3.4 Adjusting the Stand Angle
The scanner stand's angle can be adjusted for ergonomic use. Refer to the video below for instructions.
Video demonstrating how to adjust the angle of the MJ-2020R scanner stand for optimal positioning.
4. Operating Instructions
4.1 Scanning Barcodes
The Alacrity MJ-2020R scanner can decode most 1D and 2D printed or digital codes, even if they are damaged, blurred, or on colored backgrounds.

Illustration of the scanner's advanced decoding capabilities for various 1D and 2D barcode types, including damaged, blurred, and colored codes.
4.2 Data Uploading Modes
The scanner offers two primary data uploading modes:
- Instant Upload Mode: Scanned codes are transmitted to your connected device in real-time.
- Storage Mode: When out of wireless range, the scanner stores codes in its internal memory. Once reconnected, all stored data can be uploaded. The built-in memory can hold over 50,000 barcodes.

Diagram explaining the two data uploading modes: Instant Upload and Storage Mode.
4.3 Customized Settings
The scanner can be configured with various settings to suit your operational needs:
- Buzzer On/Off
- Volume (high/medium/low)
- Vibration On/Off
- Handsfree Intelligent Sensor Mode / Trigger Scan Mode
- Data Storage Mode / Instant Upload Mode
- Multiple Keyboard Languages
- Adding / Hiding Prefix / Suffix (including date and time)

Examples of customizable settings for the scanner, such as adding date and time prefixes/suffixes to scanned data.
4.4 Multilingual Keyboard Support
The scanner supports multiple keyboard layouts. Ensure the scanner's language setting matches your computer's keyboard layout for accurate output. The default language is English.

Image showing various country flags, indicating multilingual keyboard layout support for the scanner.
5. Maintenance
To ensure the longevity and optimal performance of your Alacrity MJ-2020R barcode scanner, follow these maintenance guidelines:
- Keep the scanner and charging stand clean. Use a soft, dry cloth to wipe surfaces. Avoid abrasive cleaners or solvents.
- Protect the scanning window from scratches and dirt. Clean it gently with a lint-free cloth.
- Store the scanner in a cool, dry place when not in use.
- Avoid exposing the device to extreme temperatures, humidity, or direct sunlight.
- Do not attempt to disassemble or repair the scanner yourself. Contact technical support for assistance.
6. Troubleshooting
6.1 Setting Date and Time
If the scanner outputs an incorrect date or time, you can adjust it using a Windows computer. Follow the steps in the video below:
Video tutorial on how to set the date and time on the Alacrity MJ-2020R barcode scanner using a computer.
6.2 Scanner Fails to Input Data
If the scanner performs a scan but fails to input the code data into the computer, it often indicates a lost wireless connection with the dongle inside the stand. You will typically hear a three-beep sound after scanning in this scenario. Reconnect the scanner with the dongle inside the stand as shown in the video:
Video explaining common reasons why the scanner might not input data to the computer after scanning and how to resolve connection issues.
6.3 General FAQ
For other common questions, refer to the FAQ section below or contact support.

Frequently Asked Questions regarding scanner compatibility and support, including information on Square POS systems.
7. Specifications
| Feature | Detail |
|---|---|
| Model | MJ-2020R |
| Brand | Alacrity |
| Connectivity Technology | Bluetooth, 433MHz Wireless |
| Compatible Devices | Desktop, Laptop, Smartphone |
| Power Source | Battery Powered (1 Lithium Ion battery included) |
| Transmission Distance (433MHz) | Up to 1968 feet (600 meters) unobstructed, 656 feet (200 meters) with obstacles |
| Decoding Capability | 1D (UPC/EAN, Code 128/EAN128, GS1-128, GS1 Databar, GS1 Composite, ISBT-128, Standard 2 of 5, Matrix 2 of 5, Code 39, Code 32, Code 93, Code 11, Codabar, PLESSEY, MSI, ITF-14), 2D (QR, Micro QR, Data Matrix, PDF417, Micro PDF417, Aztec, Maxicode) |
| Durability | Withstands 8 ft./2.4 m drops onto concrete, dustproof housing |
| Memory | Stores over 50,000 barcodes in storage mode |
| GTIN | 762027975456 |
| ASIN | B0CM3C17NC |
8. Warranty
For information regarding the product warranty, please refer to the product packaging or contact Alacrity customer support directly. Warranty terms and conditions may vary.
9. Technical Support
If you require further assistance or have questions not covered in this manual, please contact Alacrity technical support through the following channels:
- Email Support: support@alacritydirect.com
- WhatsApp Support: Chat via WhatsApp
- Product Page: Alacrity MJ-2020R Product Page
You can also find support by navigating to your Amazon account page, selecting 'Orders', then 'Get help with an order', selecting an issue, and sending an email.

Technical support contact options, including QR codes for manual download, email, and WhatsApp chat.