Performance

Image Sensor : 1280×800 CMOS
Illumination : Red LED/ White LED
Aiming : Green LED

Symbologies
2D : PDF417, QR Code, Data Matrix, Aztec, Maxicode, etc.
Postal : USPS Postnet, Royal Mail, KIX Post, Australian Postal, etc.
1D : EAN-13, EAN-8, UPC-A, UPC-E, ISSN, ISBN, Codabar,Code 128, Code93, ITF-6, ITF-14, Interleaved 2 of 5,Industrial 2 of 5, Standard 2 of 5, Matrix 2 of 5, GS1 Databar, Code 39, Code 11, MSI-Plessey, Plessey, etc.
Resolution* : ≥3mil
Typical Depth of Field*
EAN-13 (13mil) : 45mm-510mm
Code 39 (5mil) : 75mm-220mm
PDF417 (6.7mil) : 70mm-215mm
Data Matrix (10mil) : 50mm-220mm
QR Code (15mil) : 20mm-330mm 
Scan Angle** : Pitch: ±55°, Roll: 360°, Skew: ±55°
Field of View : Horizontal 39°, Vertical 24°
Min. Symbol Contrast* : 25%

Mechanical/Electrical

Interfaces : RS-232, USB
Dimensions : 113.5(W)×73.3(D)×159.0(H)mm
Weight : 162g
Notification : Beep, LED indicator
Rated Power Consumption : 1289.6mW (typical)
Operating Voltage : 5VDC±5%
Current@5VDC
Operating : 238.2mA (typical), 260.5mA (max.)
Standby : 71.3mA

Environmental
Operating Temperature : -20℃ to 60℃ (-4°F to 140°F)
Storage Temperature : -40℃ to 70℃ (-40°F to 158°F)
Humidity : 5%~95% (non-condensing)
ESD : ±8 KV (direct discharge); ±15 KV (air discharge)
Drop :1.5m
Sealing : IP42

Certifications
FCC Part15 Class B, CE EMC Class B

Accessories
Cable
USB : Used to connect the HR3251 to a host device.
RS-232 : Used to connect the HR3251 to a host device.

Power Adapter : DC5V power adapter to power the HR3251 with RS-232 cable.