BS870A
BS870A is the BS-family fingerprint array tuned for dry and aged skin — 208×288 class at 500+ DPI, with sensing behavior set for the outdoor reader that has to fail, then not be forgiven. One piece is the MOQ; the free SDK and 48h FAE response cover the outdoor stack-up from day one.
Key specifications
| Function | Fingerprint capture and matching through the BS-series controller (family class) |
|---|---|
| Sensor type | Active-capacitive semiconductor fingerprint array |
| Array class | 208×288 — outdoor-reader standard of the family |
| Resolution | 500+ DPI |
| Skin profile | Dry and aged skin handling emphasis (family-class tuning) |
| Target applications | Outdoor access readers, gate stations, cold-storage doors |
| Marking | BS870A (dry-skin-tuned 208×288 array) |
Full specification
| Parameter | Value | Note |
|---|---|---|
| Product family | BS-series semiconductor fingerprint sensor | 500+ DPI class |
| Array class | 208×288 | Family standard format |
| Sensor resolution | 500+ DPI | Family class |
| Skin profile | Dry and aged skin emphasis | Family-class tuning, verified in lab batch |
| Interface | BS-series controller; host side UART | Family class SDK routing |
| Match speed | <0.3 s on AM160-class controller | Family class |
| Template capacity | 200–1,000 at controller level | Family class, SDK-configurable |
| Operating environment | Module-level −40~85°C | Family class (AM-series fixture) |
| Fake-finger defense | Capacitance-liveness at controller | Family class |
| Packaging | Tape/reel or tray | On request, ESD-safe handling |
Outdoor performance depends on the cover material and seal — the FAE team checks your aperture plan against the array within 48h.

Winter hands still check in.
A 50-person warehouse shift half of whom are carrying frozen produce — dry, cracked skin is not an edge case, it is the average case. The BS870A is the family member whose sensing is tuned for that demographic:
- Dry and aged skin handling is a deliberate family-class tuning in this variant, not a firmware afterthought.
- SDK threshold tuning — the controller-side SDK lets you shift the read threshold for cold-season batches without touching hardware.
- −40~85°C module-class rating (family class) keeps the gate working in the same weather that dries the fingers using it.

Turnover-friendly by design.
Warehouse operator rosters churn faster than any office — the reader has to enroll a new driver in seconds and forget the last one cleanly; the SDK's template export/import handles both in one call (family class).
- Weekly template reloads via 1:1 export keep the gate aligned to actual staffing.
- Two-year warranty and unit-level test pass hold even for 1-pc pilot orders.
- Free SDK + 48h FAE response cover the reader controller bring-up on your own PCB.
Also in this line
BS870A FAQs
That is the variant's purpose — dry and aged skin handling is a family-class tuning tested in lab batches; the SDK lets you further tune the threshold for your demographic.
Yes — the matching algorithm and SDK are part of the platform, with demo routines for the outdoor use case built in.
Sealed aperture, scratch-resistant cover and module-level −40~85°C fixture from the family class; the FAE team checks your plan against the array within 48h.
Design the gate for the worst hand, not the demo hand.
Send your outdoor reader plan — lab batch results, datasheet and 1-pc offer land in your inbox within 48h.



