BLE temperature probe pairing
Trakora supports Bluetooth Low Energy temperature probes for fridges, vaccine carriers, cold rooms, and refrigerated trucks. This guide pairs a probe with the Trakora mobile app and gets you receiving readings within ~5 minutes.
What you'll need
- A Trakora-supplied BLE temperature probe (TempTag-T1 or compatible)
- The Trakora mobile app (Android 9+ or iOS 14+)
- Bluetooth and Location enabled on your phone (Android requires Location for BLE scanning)
- The asset you want to monitor (fridge, cool box, vehicle)
1. Activate the probe
- Pull the plastic battery tab. The probe blinks green twice.
- Battery life is ~12 months at 1 reading per minute. The CR2477 is user-replaceable.
- Effective range is 5–10 m through one wall, longer in open air.
2. Pair in the Trakora app
- Open the app and go to Cold Chain → Sensors → New sensor.
- Tap Scan BLE. Nearby probes appear as their MAC address (e.g.
E2:8A:1F:...). - Match the MAC against the sticker on the probe and tap it.
- Give the sensor a name (Vaccine fridge — Sinza Pharmacy) and assign it to a location.
3. Set thresholds
For vaccines follow MoH PQS guidance — typically 2 °C to 8 °C. For frozen goods set -25 °C to -15 °C. Trakora alerts when readings drift outside the band for longer than the excursion grace you choose (default 10 minutes).
4. Calibration
If you have a calibrated reference thermometer, enter the reference reading at Sensor → Calibration. Trakora stores a per-probe offset and applies it to every future sample. NIST-traceable calibration is recommended every 12 months for MoH audits.
5. Low-battery and disconnection alerts
These are on by default:
- Low battery — fires below 20 %.
- Lost contact — fires after no reading for 30 minutes (configurable per sensor).
Still stuck?
WhatsApp +255 759 702 766 or email support@trakora.co.tz. Include the probe MAC and the time of the issue in EAT.