skip to Main Content


Our Multi-use Temperature Logger with Bluetooth connectivity and 55 meter range.

Memory: 256k
Temperature Range: -40°C to +80°C / -40°F to +176°F

CALL 800-858-6872


Download Product Brief:
Download a PDF of the EDL-BT55 Quick Start Guide
Download: Android App


THE EDL-BT55 is a long-range Bluetooth temperature data logger using a power saving Nordic N51822 chip. With a range of 55 meters, you can enjoy the convenience of capturing and viewing all of your critical refrigerator monitoring, in real time right from your smartphone. Then, email files immediately with full graphs, and time-stamped data,

This logger comes with a one-meter external probe, and can store up to 12K data points. Its small size, light weight, and high-accuracy thermistor make it an ideal data logger for your refrigerators, pharmacies, warehouse or totes.

With the mobile phone APP, the user can configure programming durations, and see detailed time-stamped data in either Fahrenheit or Celsius.



  • Refrigerated storage and transportation
  • Archives
  • Experimental (test) rooms
  • Workshops
  • Museums
  • Pharmaceutical environments
  • Fresh transport

Product Features

  • Real-time display of parameters
  • High precision and high stability
  • Bluetooth 4.0
  • Long-distance wireless communication
  • Built-in high-sensitivity temperature sensor
  • Can store 12,000 temperature data points
  • Alarm temperature limits set by user
  • Temperature graphs can be automatically generated using the APP
EDL-BT55 – SKU#7067
Memory 256k Temperature and Relative Humidity
Storage Up to 12,000 data points. See Duration Chart for examples.
Temperature Range -40° C to +80° C / -40° F to +176° F
Temperature Accuracy ±0.5° C from -20° to +40° C, ±1.0° C at extremes
±0.9° F from -4° to +104° F, ±1.8° F at extremes
Signal Frequency Transmission 2.400 – 2.4835 GHz
Protocol Bluetooth 4.0
Modulation Mode GFSK
Transmission Interval 10S-24H Continuous setting
Communication Rate 1 Mbps
Receiving Sensitivity 1 Mbps @ -93 bm
Maximum Transmission Distance 55 meters, adjustable
Internal Battery CR2450
Battery Life 1 year. (Depends on mode of operation. Replaceable battery)
Net Weight 25 g
Dimension 50 mm X 35 mm x 15 mm

Specifications subject to change without prior notice.

Phone App screens

Software Highlights:

Temperature Data Logger is a free mobile application provided to connect to the EDL-BT04 using Bluetooth technology. With the mobile phone APP, the user can wirelessly download the data through the GPRS network, and use configuration tools to achieve a full-stage real-time temperature and humidity recording. Options include changing settings, data transmission, recording, synchronization, and uploading to a server. Works with Android, IOS, and Windows 10.

Download: Android App

Back To Top