MT581 2D Wireless Ring Scanner

Hands-free scanning with microbe-free

Weighing at 19.4g, MT581 is the most lightweight wearable 2D wireless ring scanner in the world that enables hands-free scanning for mobile operators who work with smart phones or other mobile devices of iOS® and Android®. With built-in Bluetooth® 5.0 technology and disinfectant-ready housing, MT581 provides 20-meter wireless data transmission and microbe-free scanning experience.

2d healthcare bracode scanner

Anti-Microbial Scanner for Healthcare

Built with anti-microbial technology, MT581 can endure repeated alcohol or bleach cleaning and keep preventing the reproduction and spread of bacteria among nurses in hospital. The disinfectant-ready MT581 2D wireless ring scanner enables caregivers to quickly identify patients and dispense medications, keep up-to-date record and manage medical supplies inventory in an error-free manner.
Medical Certifications:
ISO 22196 (JIS Z 2801); ISO 11737-1, ISO 11737-2

2d wearable  barcode scanner

Fast 1D & 2D Barcode Data Capture

MT581, on an average of 1/10 seconds, scans all linear barcodes and major 2D barcodes printed on labels with either matte or glossy surface, or displayed on mobile phone or LCD screen. MT581 2D wireless ring scanner also delivers superior scanning in any orientation, which benefits enterprise with less downtime and increasing productivity.

2d finger barcode scanner

Ergonomic Design for Mobile Operators

MT581 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.

wearable ring scanner

Preventing Occupational Injury

Weighing at only 19.4g, MT581 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, MT581 as the most lightweight ring scanner, plus the patented double strap design, ensures that the operator's finger feels no burden and has no contact with the hard plastic case, preventing occupational injury and discomfort.

ring barcode scanner

Right and Left-Handed, With or Without Glove

MT581 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. With a built-in memory of 2MB, MT581 can store data scanned in user-friendly file format when it is operated in memory mode.

wearable 2d scanner

The Better User Experience

With built-in buzzer and LED, MT581 provides full variety of Good Read responses such as audible and visual feedback. MT581 is also easily configured on the host computer by Marson's free user-friendly software tool, Ez Utility®. MT581 is shipped with three spare Velcro straps which are easily to be replaced for individual user to prevent infection. MT581 2D wireless ring scanner can be paired with an optional accessory MT612 Charging Cradle.


Optical & Performance
Light Source White LED
625nm Red LED
Sensor 640 x 480
Scan Rate 60 Frames/Sec
Resolution 5mil (1D barcode)
6.67mil (2D barcode)
Scan Angle Horizontal 42°
Vertical 31.5°
Pitch Angle ±60°
Skew Angle ±30°
Roll Angle 360°
Print Contrast 40%
Width of Field 156mm (13Mil Code39)
Memory 2MB (20,000 barcodes)
Typical D.O.F*
(@ 800 Lux)
  • Code39
  • 5 Mil  : 45 ~ 145 mm
  • 13 Mil: 65 ~ 345 mm
  • QR Code
  • 15 Mil: 35 ~ 165 mm
  • PDF417
  • 6.67 Mil: 55 ~ 120 mm
  • Data Matrix
  • 10 Mil: 50 ~ 115 mm
Physical Characteristics
Dimension W27.6 x L46.2 x H26.8 mm
Weight 19.4g
Color Black/white
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 < 190mA
Standby Current < 25mA
Battery 3.7V, 240mAh, Li-Polymer Battery
Number of Scan
(per full charge)
4500 scans
(1 scan/ 5 secs, Bluetooth connected)
Radio Bluetooth 5.0 dual mode (Class 2)
Range (Distance) 66 ft/ 20m (line of sight)
Interface/ Profile
  • BT HID
  • BT SPP
  • 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 100,000 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, Code 39, Interleaved 2 of 5, MSI Plessey Code, UK Plessey Code, EAN/UCC 128, IATA Code, GS1 Databar
2D Symbologies QR Code, Micro QR Code, PDF417, Data Matrix, Aztec
ESD Functional after 4KV contact, 8KV air discharge
EMC/RF FCC Part 15B Class B, Part15C
CE EN62479, EN301489-1-17, EN300328 V2.2.2, TELEC
Safety Approval IEC62471 (Exempt Group)
Environmental WEEE, RoHS 2.0
Medical Compliance ISO 22196 (JIS Z 2801), ISO 11737-1/2
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)
“ 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
    ScanLink app
    For Android quick pairing
  • Document
    MT581 2D Ring Scanner Datasheet
  • Document
    Ez Utility v7.03
    For Standard Firmware
  • Document
    HM3 VCP Driver
    For Products with HM3-x-x.xx Firmware
  • Document
    MT581 User Manual v1.2
  • Document
    MT581 Quick Guide v1