Red cross laser aiming ensures precise targeting and efficient scanning
Red cross laser aiming enables precise aiming, speeds up barcode alignment, improves efficiency, and is clearly visible against most backgrounds, making it suitable for complex environments, so it reduces misreading, improves aiming accuracy, and enhances the user experience.

R352X Bluetooth Ring Scanner Series

Long working hours effectively reduced downtime
The 600mAh large-capacity battery supports up to 21 hours of use at a scanning frequency of 5 seconds. With this long working time, there’s no need for frequent recharging, meaning tasks can proceed without interruption. This is especially critical in fast-paced environments like warehouse, logistics hubs, and retail stores, significantly improving workflow continuity and overall productivity.
Replaceable trigger assemblies contribute to hygiene by minimizing the spread of germs
This feature is particularly beneficial in industries like healthcare, manufacturing, or retail where workers need to prioritize cleanliness. The hands-free operation helps prevent the transfer of germs and enhances worker safety, making these scanners a suitable choice for environments where hygiene is a top concern.


Excellent scanning range for a wide range of applications
The R3523 offers an industry-leading scanning range, making it ideal for a wide variety of use cases. For instance, it can read 5mil Code 39 barcodes from distances of up to 31 cm—an unmatched performance in its category. This extended range is especially beneficial in retail industries, enabling truly contactless scanning that enhances the overall shopping experience. It helps reduce checkout congestion during peak hours, boosting hourly order processing capacity from 120 to 180 and improving operational efficiency.
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Specifications for R352X Ring Scanner Series
R3520 Ring Barcode Scanner | R3521 Ring Barcode Scanner | R3522 Ring Barcode Scanner | R3523 Ring Barcode Scanner | |
Dimension | 64.8mm(L) × 34.6mm(W) × 24.8mm(D)
| 64.8mm(L) × 34.6mm(W) × 24.8mm(D) | 64.8mm(L) × 34.6mm(W) × 24.8mm(D) | 64.8mm(L) × 34.6mm(W) × 24.8mm(D) |
Weight | 30.3g(scanner body) | 39.2g(scanner body) | 37.0g(scanner body) | 37.0g(scanner body) |
Battery Capacity | 600mAh | 600mAh | 600mAh | 600mAh |
Battery Life per Full Charge | 16.1h(scan once in 5 seconds) | 12.9h(scan once in 5 seconds) | 21h(scan once in 5 seconds) | 21h(scan once in 5 seconds) |
Charging | 5V 1A | 5V 1A | 5V 1A | 5V 1A |
Charging Time | 120min. | 120min. | 120min. | 120min. |
Notification | LED, Buzzer, Vibration | LED, Buzzer, Vibration | LED, Buzzer, Vibration | LED, Buzzer, Vibration |
Scan Engine | Zebra SE2707 | Zebra SE4107 | GEA301 | GEA302 |
Optical Resolution | 640 x 480 pixels | 1280x960 pixels | 1280x800 pixels | 1280x800 pixels |
Shutter | Rolling Shutter | Rolling Shutter | Global Shutter | Global Shutter |
Skew, Pitch & Roll | Skew tolerance: ±60° from normal Pitch tolerance: ±60° from normal Roll tolerance: 360° from normal | Skew tolerance: ±60° from normal Pitch tolerance: ±60° from normal Roll tolerance: 360° from normal | Skew tolerance: ±60° from normal Pitch tolerance: ±60° from normal Roll tolerance: 360° from normal | Skew tolerance: ±60° from normal Pitch tolerance: ±60° from normal Roll tolerance: 360° from normal |
Illumination | Red LED | Warm White LED | White LED | White LED |
Aiming | Red LED | Green LED | Red LED | Red Cross Laser |
Network Connections | USB, Bluetooth | USB, Bluetooth | USB, Bluetooth | USB, Bluetooth |
USB Interface | USB Type-C | USB Type-C | USB Type-C | USB Type-C |
USB Profiles | USB HID Keyboard, USB VCP (Virtual Serial Port) | USB HID Keyboard, USB VCP (Virtual Serial Port) | USB HID Keyboard, USB VCP (Virtual Serial Port) | USB HID Keyboard, USB VCP (Virtual Serial Port) |
Multilingual Keyboards | USB HID mode supports multilingual keyboards | USB HID mode supports multilingual keyboards | USB HID mode supports multilingual keyboards | USB HID mode supports multilingual keyboards |
Bluetooth Porfiles | HID Keyboard, SPP, and Bluetooth low energy(BLE) | HID Keyboard, SPP, and Bluetooth low energy(BLE) | HID Keyboard, SPP, and Bluetooth low energy(BLE) | HID Keyboard, SPP, and Bluetooth low energy(BLE) |
Bluetooth Range | Communication distance connected to mobile phone > 164.04ft./50m (without obstructions) | Communication distance connected to mobile phone > 164.04ft./50m (without obstructions) | Communication distance connected to mobile phone > 164.04ft./50m (without obstructions) | Communication distance connected to mobile phone > 164.04ft./50m (without obstructions) |
Symbol Decode Capability | 1D: Code39, Code128, Codabar, Code11, UPC/EAN, Interleaved 2 of 5, Discrete 2 of 5, Chinese 2 of 5, Matrix 2 of 5, Korean 3 of 5, GS1 Databar, Code93, MSI, Composite 2D: PDF417, Postal Codes, Micro PDF, Micro PDF417, Code128 Emulation, Aztec, Data Matrix, GS1 Data Matrix, QR Code, GS1 QR, Maxicode, Micro QR, HanXin Code, Grid Matrix | 1D: Code39, Code128, Codabar, Code11, UPC/EAN, Interleaved 2 of 5, Discrete 2 of 5, Chinese 2 of 5, Matrix 2 of 5, Korean 3 of 5, GS1 Databar, Code93, MSI, Composite 2D: PDF417, Postal Codes, Micro PDF, Micro PDF417, Code128 Emulation, Aztec, Data Matrix, GS1 Data Matrix, QR Code, GS1 QR, Maxicode, Micro QR, HanXin Code, Grid Matrix | 1D: Code39, Code128, Code 39 full ascii, Trioptic Code39, Code 32, UPC-A, UPC-E, UPC-E1, UPC-E+, UPC-A+, EAN8/JAN8, EAN13/JAN13, Bookland EAN/ISBN, MSI, Codabar, Code11, Interleaved 2 of 5, Industrial 2 of 5, Chinese 2 of 5, Matrix 2 of 5, ISBT, GS1 Databar14, GS1 Databar Limited, GS1 Databar Expanded, GS1-128, Code93 2D: PDF417, Micro PDF417, QR Code, DataMatrix, Micro QR, Hanxin, Grid Matrix, Aztec, Maxicode, GS1 QR, GS1 DataMatrix, GS1 Combosite(CC-A/CC-B/CC-C) | 1D: Code39, Code128, Code 39 full ascii, Trioptic Code39, Code 32, UPC-A, UPC-E, UPC-E1, UPC-E+, UPC-A+, EAN8/JAN8, EAN13/JAN13, Bookland EAN/ISBN, MSI, Codabar, Code11, Interleaved 2 of 5, Industrial 2 of 5, Chinese 2 of 5, Matrix 2 of 5, ISBT, GS1 Databar14, GS1 Databar Limited, GS1 Databar Expanded, GS1-128, Code93 2D: PDF417, Micro PDF417, QR Code, DataMatrix, Micro QR, Hanxin, Grid Matrix, Aztec, Maxicode, GS1 QR, GS1 DataMatrix, GS1 Combosite(CC-A/CC-B/CC-C) |
Offline Mode | Support storage of 3839 EAN-13 barcodes | Support storage of 3839 EAN-13 barcodes | Support storage of 3839 EAN-13 barcodes | Support storage of 3839 EAN-13 barcodes |
Ambient Light Immunity | Max 107639lux (direct sunlight) | Max 107639lux (direct sunlight) | Max 100000lux (direct sunlight) | Max 100000lux (direct sunlight) |
Operating Temperature | -10°C~50°C | -10°C~50°C | -10°C~50°C | -10°C~50°C |
Storage Temperature | -10°C~50°C | -10°C~50°C | -10°C~50°C | -10°C~50°C |
Humidity | 5% - 85% non-condensing | 5% - 85% non-condensing | 5% - 85% non-condensing | 5% - 85% non-condensing |
Drop Spec. | Multiple 4.9ft./1.5M drops to concrete | Multiple 4.9ft./1.5M drops to concrete | Multiple 4.9ft./1.5M drops to concrete | Multiple 4.9ft./1.5M drops to concrete |
Tumble Spec. | Scanner body withstands 20,000 times from 3.3ft./1M with frequency of 10 times per minute. | Scanner body withstands 20,000 times from 3.3ft./1M with frequency of 10 times per minute. | Scanner body withstands 20,000 times from 3.3ft./1M with frequency of 10 times per minute. | Scanner body withstands 20,000 times from 3.3ft./1M with frequency of 10 times per minute. |
Electrostatic Discharge(ESD) | ±8kv dc discharge ±15kv air discharge | ±8kv dc discharge ±15kv air discharge | ±8kv dc discharge ±15kv air discharge | ±8kv dc discharge ±15kv air discharge |
Certification | CE, FCC, KC, TELEC, RoHS, ANATEL, NOM, EAC | CE, FCC, KC, TELEC, RoHS, ANATEL, NOM, EAC | CE, FCC, KC, TELEC, RoHS, ANATEL, NOM, EAC | CE, FCC, KC, TELEC, RoHS, ANATEL, NOM, EAC |
Software Supported | Generalscan Keyboard Pro, Generalscan SDK Demo, Generalscan OTA Tools, G-Service | Generalscan Keyboard Pro, Generalscan SDK Demo, Generalscan OTA Tools, G-Service | Generalscan Keyboard Pro, Generalscan SDK Demo, Generalscan OTA Tools,G-Service | Generalscan Keyboard Pro, Generalscan SDK Demo, Generalscan OTA Tools,G-Service |
Decode Range | 5mil Code128 63-127mm 5mil Code39 51-162mm 6.6mil PDF417 63-160mm 10mil PDF417 45-228mm 20mil Code39 50-495mm 100% UPC 50-317mm 20mil DataMatrix 38-343mm 20mil QR 38-279mm | 5mil Code128 71-229mm 5mil Code39 61-241mm 6.6mil PDF417 61-203mm 10mil DataMatrix 74-216mm 100% UPCA 46-495mm 15mil QR 30-292mm 20mil QR 30-356mm | 3mil Code 39 60-190mm 5mil Code 39 30-310mm 5mil QR Code 85-120mm 13mil EAN13 45-520mm | 3.3mil Code 39 110-190mm 5mil Code 39 80-310mm 15mil QR Code 40-390mm 13mil EAN13 60-700mm 10mil DataMatrix 90-270mm 6.7mil PDF417 110-26mm |