Cold Chain
ColdTag
A coin-cell BLE sensor tag that streams temperature live and keeps logging offline, so a cold-chain reading is never lost to a dropped connection.
At a glance
−40 to 85°C
Sensing range
±0.5°C
Accuracy
25,000
Buffered readings offline
12months
Coin-cell battery life
Overview
Sized to travel with a sample rather than sit in a fixed installation. While connected, temperature streams live over Bluetooth. Connected or not, every reading is also written to an on-device buffer holding up to 25,000 readings, which pulls back over BLE the next time a host reconnects, so a network gap or a phone left behind costs no data.
That combination is built for the home-visit collection round-trip. A tag travels with the vial from doorstep to lab, streaming temperature to the collector’s phone whenever it is in range, and still has a complete, timestamped log to hand over at the lab or to an auditor if the connection ever dropped along the way.
Specifications
Parameters
| SoC | nRF52-series |
|---|---|
| Connectivity | Bluetooth LE, Eddystone or iBeacon advertising (set at purchase) |
| Live reading | Streamed over a BLE notify characteristic while connected |
| Offline log capacity | 25,000 readings, non-volatile |
| Sensing range | −40 °C to +85 °C |
| Accuracy | ±0.5 °C |
| Battery | CR2477 lithium coin cell, 3 V, 12 months typical, field replaceable |
| Dimensions | 65 × 41 × 17 mm, 2 mounting holes |
| Platform support | Android SDK, GATT abstracted |
Used by
Next step
Specify a coldtag for your site.
Tell us the read distance, the throughput and what it has to talk to. We will confirm the configuration, or point you at a simpler device.
or write to sales@iotready.com