U4
The U4 is the mid-tier 2D imager of the U series — the unit between entry imaging and the performance family, built for warehouses that need QR and DataMatrix on parcel labels plus the usual 1D on racks.
Key specifications
| Function | Mid-tier 2D capture for mixed parcel and rack label workflows |
|---|---|
| Imaging engine | CMOS imager, 0.5–0.75 MP class (family standard) |
| Symbologies | All 1D plus QR, DataMatrix, PDF417, Aztec, China Post codes |
| Precision | 4 mil minimum element width class |
| Read range | 0–80 cm class (family-class value) |
| Host interfaces | USB HID / CDC, RS232 |
| Housing | Standard commercial shell with reinforced trigger cycle |
| Target applications | Hand-pick aisles, staging check, inbound 2D receipts |
Full specification
| Parameter | Value | Note |
|---|---|---|
| Product family | EMS Biometric U-series handheld 2D | Mid-tier performer |
| Imaging sensor | CMOS, 0.5–0.75 MP class | Family-standard pixel count |
| Resolution | 4 mil class | Per-model in datasheet |
| Symbologies | EAN/UPC, Code 39/93/128, GS1-128, ITF-14, Codabar, QR, DataMatrix, PDF417, Aztec, China Post codes | Full 2D set |
| Read range | 0–80 cm class | Family-class; per-model curve on request |
| Host interfaces | USB + RS232 | Both standard |
| Wireless | Wired unit | See V3/V12 for cordless |
| Operating temperature | Indoor commercial class | See W-series for industrial range |
| Supply terms | MOQ 1 pc · sample 1–3 days · production 10–25 days (under 5,000 pcs) | EMS standard terms |
| Customization | Logo silk-screen, packaging, cable marking per project | OEM order-based |
| Warranty | 2 years | From first unit |
Family-class values shown — exact per-model figures in the datasheet; the FAE team verifies aisle-side capture within 48h.
Parcels moved from "find it" to "scanned it".
Here is the honest math of a hand-pick bay: error rates around 1–3% on manual counts, and inventory errors silent-draining a percent or two of margin. Retrofitting machine vision is a capital project; the U4 is the operational one — a mid-tier 2D gun that decodes the warehouse's newest labels and the old ones in the same shift:
- DataMatrix without a project — the small matrix codes that packaging suppliers increasingly print decode instantly, so rebills and mis-picks fed by unreadable labels stop at the source.
- Rack labels never retired — the existing Code 128 and ITF rack stock still reads at the 4 mil class; upgrading to 2D doesn't trigger a re-labeling budget.
- Escalatable by aisle — start with two U4 units at the busiest aisle, add more by season; MOQ 1 pc and 2-year warranty make the growth a purchase order, not a program.
U4 FAQs
For dry, rack-organized bays the U4 mid tier is usually the end of the story; rough floors with dust and drops justify the jump to the W-series industrial housing instead.
QR and DataMatrix from commercial printing are standard targets; bleed-through or glossy edges on cheap labels are the only borderline case — sample-test one pallet before fleet order.
One unit ships in 1–3 days; pair it with the free SDK and a laptop at the bay, and you will have scan data in your WMS within the week.
Let an engineer verify your U4 bays.
Send your label mix and aisle layout — get a coverage matrix, updated datasheet and sample offer within 48h.
