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Bluetooth temperature data logger for COVID19 vaccines monitoring

Bluetooth temperature data logger, managed through Android devices with BlueTrails App with cable and rigid metal probe of verious lengths, calibrated from -80°C up to 20°C; it has a wide range of monitoring applications especially in the food and pharmaceutical industry, for continuous monitoring in ultra freezers. The data logger is paired to a smartphone and transmits data via Bluetooth (5.0 or above) at a programmed rate. Data are displayed in real time as they come and alarms are given when temperature is out of limits (limits can be programmed too). At reach delivery it is possible to send data via email. Connecting a Bluetooth thermal printer data can be printed to be left with delivery documents. The data logger's battery is user replaceable and it possible to buy the calibration certificate with Accredia (Italian reference center, NIST equivalent) traceability.

The rigid metal probe is made with stainless steel AISI 316L, food grade, and is available in different types:

  • 3 cm length, 4 mm diameter, rounded tip for immersion (ordering code 03)
  • 8 cm length, 4 mm diameter, rounded tip for immersion (ordering code 04)
  • 3 cm length, 4 mm diameter, pointed tip for penetration (ordering code 05)
  • 8 cm length, 4 mm diameter, pointed tip for penetration (ordering code 06)

Cable is 2 mm diameter and has a standard length of 50 cm but it can be ordered longer.

Software download and related accessories



Main features

  • Real time data transmission on Android/IOS devices
  • Long life battery: 2 years with continuous transmission every 15 minutes
  • Real time check against alarm thresholds
  • Generates PDF reports via email
  • Optional Reference traceable calibration certificate available


  • No extra accessory: your smartphone is all you need
  • Small size suitable for every package and box
  • Real time alarms
  • Bluetooth printer paired to the smartphone available
  • BLE 5.0 for long range transmission
  • User replaceable battery
  • Provided with calibration certificate Accredia (NIST equivalent) traceable

The system

BlueLOG P data logger does not need of any additional accessory. Just download the Android App and you are ready to start using it.

Dimensions 67 X 20 X 97 (mm)
Probe dimensions Cable 300 l X 2 Ø (mm) or longer - Probe 30 or 80 l X 4 Ø (mm) pointed or rounded
Weight 18 g
Temperature range -30 °C ÷ +60 °C
Sensor temperature range -40 °C ÷ +80 °C
Standard calibration points (temperature) -80/-40/0/20°C
Extra calibration points (temperature) Within standard calibration range
Temperature resolution 0,03 °C
Temperature accuracy ± 0.5 °C without certificate / ± 0,2 °C with Accredia traceable certificate (valid in the calibration range)
Memory (n. of acquisitions)
Acquisition step From 1 minute up (in steps of 1 minute)
Buttons and functions Immediate reading button, stop acquisitions button
Functions Connection, acquisition and alarm LED
Communication Bluetooth
Battery life Up to 2 years life with acquisition rate of 15 minutes
Battery type 2 AA 1,5 V batteries
Protection degree IP67
Software&Mobile App BlueLOG Trails
It requires Bluetooth 5.0 or 4.0 device


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