MT500L Wireless Ring Scanner

Wearable Design for Hands-Free Scanning

Weighing at 20.5g, MT500L is the most lightweight wearable wireless 1D barcode scanner in the world that enables both hands-free scanning for mobile operators who work with laptops, tablets, smart phones or other mobile devices with iOS®, Android® and Windows®. With built-in Bluetooth® 4.1 technology, MT500L wireless ring scanner can send data to the host up to 10 meters away.

ring bracode scanner

Right and Left-Handed, With or Without Glove

MT500L allows mobile operators to wear on either their right or left hand according to user's preferences, and the operator can wear glove or don't. MT500L is designed to enable users to quickly capture any 1D barcode data in either printed or on-screen (LCD) format.

wearable barcode scanner

Ergonomic Design for Mobile Operators

MT500L provides the user freedom of movement to perform barcode scanning tasks comfortably while keeping both hands free. Thanks to the patented dual touch activated switches, the Velcro strap doesn't have to be tied too tightly, it prevents poor blood circulation and occupational injury as well as increase operators' satisfaction.

2d finger scanner

Flexible Operations of Data Collection

MT500L wireless ring scanner is versatile with the advantage of conducting flexible data collection operations of both on-line wireless mode and off-line memory mode including multiple communication interfaces (BT HID/ USB HID/ USB VCP). With a built-in memory of 2MB, MT500L can store up to 20,000 data scanned in user-friendly file format when it is operated in memory mode.

2D wearable ring scanner

Preventing Occupational Injury

Weighing at 20.5g, MT500L is multiple times lighter than the counterparts of other brands. Since wearing a ring of over 20g for long period of time may cause injury to the finger, MT500L as the most lightweight ring scanner, plus the patented double strap design as shown in above picture, ensures that the operator's finger feels no burden and has no contact with the hard plastic case, preventing occupational injury and discomfort.

ring scanner

On-Screen Barcode Readability

The MT500L SBR (Screen Barcode Readable) laser scanner is equipped with a thin, sharp and safe class 1 laser aimer which helps users to accurately aim at barcodes. With Marson's patented laser technology, no moving parts, configurable brightness and auto-adaptive illumination, MT500L wireless ring scanner ensures accurate barcode capture of either printed or on-screen (LCD) barcodes.

wearable scanner

The Better User Experience

As classified by Laser Safety Standard EN/IEC 60825-1 (Class 1), FDA, the light source of MT500L is completely safe for human eyes even after long hours operation. With built-in buzzer and LED, MT500L provides full variety of Good Read responses such as audible and visual feedback. MT500L is also easily configured on the host computer by Marson's free user-friendly software tool, Ez Utility®. MT500L is shipped with three spare Velcro straps which are easily to be replaced for individual user to prevent infection. MT500L wireless ring scanner can be paired with an optional accessory MT612 Charging Cradle.



Optical & Performance
Light Source 650nm visible red Laser
Compensation Light visible white LED
Sensor Linear Image Sensor
Scan Rate 400 Scans/Sec
Resolution 4mil/ 0.1mm
Scan Angle 41°
Pitch Angle ±30°
Skew Angle ±40°
Roll Angle ±20°
Print Contrast 30%
Width of Field 130mm (13Mil Code39)
Memory 2MB (20,000 barcodes)
Typical D.O.F*
(@ 800 Lux)
  • Code39
  • 4 Mil  : 33 ~ 83 mm
  • 5 Mil  : 27 ~ 105 mm
  • 10 Mil: 30 ~ 205 mm
  • 15 Mil: 44 ~ 292 mm
  • 13 Mil: 41 ~ 239 mm
Physical Characteristics
Dimension W27.6 x L46.2 x H26.8 mm
Weight 20.5g
Color Black
Material PC+ABS
Cable Micro(M) to USB A(M) Cable, 1.5M
Trigger Touch Switches, Function Button
Indicator LED, Buzzer
Operation Voltage 3.7 VDC ± 5%
Working Current < 85mA
Standby Current < 30mA
Battery  3.7V, 250mAh, Li-Polymer Battery
Number of Scan
(per full charge)
 6000 scans
(1 scan/ 5 secs, Bluetooth connected)
Radio Bluetooth 4.1® (Class 2)
Range (Distance) 33 ft/ 10m (line of sight)
Interface/ Profile
  • BT HID
  • Memory
User Environment
Operating Temperature -10 ~ 50˚C
Storage Temperature -20 ~ 60˚C
Humidity 0% ~ 95%RH (Non-condensing)
Drop Durability 1.5M
Sealing IP42
Ambient Light 70,000 Lux (Sunlight)
Decode Capability
1D Symbologies UPC-A/UPC-E, EAN-8/EAN-13, Industrial 2 of 5, Codabar, Matrix 2 of 5, Code 11, Code 93, Code 32, Code 128, Standard Code 39, Full ASCII Code 39, Interleaved 2 of 5, China Postal Code, MSI Plessy Code, UK Plessy Code, EAN/UCC 128, Telepen Code, IATA Code, GS1 Databar
ESD Functional after 4KV contact, 8KV Air discharge
EMC/RF FCC Part 15B Class B, Part15C
CE EN62479, EN301489-1-17, EN300328 V2.1.1, TELEC
Safety Approval EN/IEC60825-1 (Class 1), FDA, EN62368
Environmental WEEE, RoHS 2.0, REACH
Out Of Box
Cable Micro(M) to USB A(M) Cable, 1.5M, Black
(P/N: 7005-9892A50, QTY: 1)
Velcro Strap Velcro Strap, Black
(P/N: 30G0-6539001, QTY: 3)
Taiwan M 395218
M 432094
M 457244
M 547134
China ZL 201020287072.6
ZL 2012 2 0056120.X
ZL 2013 2 0042893.7
ZL 2017 2 0127912.4
United States US 8,220,712 B2
US 8,770,845
Japan 3176098
Germany 202012101013.5
“ Need a custom product ? Please tell us your requirements. ”
* Those D.O.F are mean values.
** All Specifications are subject to change without notice.


  • Document
  • Document
    Ez Utility v7.03
    For Standard Firmware
  • Document
    MT500L Ring Scanner Datasheet
  • Document
    SPS Mode Demo App Sample Code
    For Android
  • Document
    SPS Mode Demo Guide
    With SPS demo app download link
  • Document
    MT500L Quick Guide v3
  • Document
    MT500L User Manual v2018.1
  • Document
    SM3 VCP Driver
    For Products with SM3-x-x.xx Firmware