# BLE Wristband Beacon

> A replaceable-band wristband beacon with an SOS button, IP67 sealing and a 16-month battery, for staff, contractor and patient presence tracking.

- **Page** - https://iotready.com/hardware/ble-beacon-wristband
- **Family** - [BLE](https://iotready.com/hardware/family/ble)
- **Form factor** - Wristband

## At a glance

- **16 months** Battery life
- **23 g** Mass
- **IP67** Ingress protection
- **100 m** Range (BLE 5.0)

Tracking people works the same way as tracking assets, with a duty of care
attached. The wristband reports presence at zone level, which is what a staff,
contractor or patient record needs.

The button belongs to the wearer. One press raises an SOS or duress alert over
the same link a routine presence read uses. The strap and the coin cell are both
swapped on site, so a wristband shared between shifts needs no service visit and
no charging dock.

## Specifications

| Parameter | Value |
| --- | --- |
| Dimensions | 34 mm diameter x 8.4 mm; 250 mm strap |
| Weight | 23 g |
| Radio | Bluetooth LE 5.0, nRF52-series chipset |
| Range | Up to 100 m (BLE 4.0/5.0); ~50 m in typical indoor conditions |
| Advertising | iBeacon and Eddystone (UID/URL/TLM); 1 s interval, configurable |
| Controls | SOS / call button, status LED |
| Sensors | Accelerometer |
| Battery | CR2032 coin cell, user replaceable; ~16 months typical |
| Strap | Replaceable silicone band |
| Ingress protection | IP67 |

## Used by

- [Asset Tracking](https://iotready.com/solutions/asset-tracking.md): Every asset tracking problem reduces to a reader and a tag. Which of the two is fixed is the main design decision.
- [People Tracking](https://iotready.com/solutions/wayfinding.md): Personnel tracking for factories, cleanrooms and campuses, and indoor wayfinding for the visitors walking the same building.
- [Coldchain](https://iotready.com/industries/coldchain.md): The stock record and the temperature record belong together, because a reading you cannot tie to a pallet proves nothing.