From bare PCB to finished tag — every step on our line, under one roof.

Our in-house SMT line places every component with micron precision. From BLE SoC to passives, all reflow-soldered under controlled nitrogen atmosphere.

100% RF validation before assembly. Each PCB goes through BLE pairing, UWB ranging, and antenna tuning on our calibrated test benches.

Skilled technicians hand-assemble every tag — battery insertion, ultrasonic welding, and enclosure sealing — all in our ESD-protected cleanroom, no third-party subcontractors.

Final QA scan, serial-number logging, and anti-static packaging. Every unit ships with its own barcode traceable back to the SMT batch.
Specs we hold to on every line — specified materials, and a test for every unit that ships.
FR-4 glass-epoxy board with lead-free HASL or ENIG finish — fully RoHS-compliant and eco-friendly.
Sourced only from first-tier brands — Samsung, Murata, TCCC and FH. No off-brand or salvaged parts.
Every batch passes a 10mA constant-current discharge sample test — capacity must exceed 210mAh before release.
Only virgin resin — no recycled content — so housings resist yellowing and hold up to years of everyday use.
Power draw, ESD and continuity are all checked on every bare PCB before a single component is placed.
100% testedEvery assembled board is validated for BLE transmit power, frequency offset and -80dBm receive sensitivity.
100% testedBuzzer output is verified at 80dB and the button is exercised — no silent, no dead units leave the line.
100% testedUnits are cycled from -20°C to +60°C and burn-in tested to catch early-life failures before they reach you.
Batch sampledRandom-drop and vibration profiles simulate daily carrying — keychains, bags, car pockets — on sampled units.
Batch sampledEvery unit carries a serial that traces back to its SMT lot. Defects are isolated at the batch, never shipped forward.
System