The TR4 series are data loggers equipped with Bluetooth low energy. With a smartphone/tablet and our dedicated apps, logger communication and data management have never been easier. We offer dedicated apps for real-time monitoring of changing data and uploading recorded data to our free cloud service "T&D WebStorage Service".
Real-Time Data Monitoring from Smart Device
Simultaneous Data Collection from Multiple Loggers
Automatic Data Upload
Measurement Channels Temperature 1ch (External)
Measurement Range -60 to 155 °C
Accuracy Avg. ±0.3 °C
LCD Display Measurements, Battery Life Warning, etc.
Logging Capacity 16000
Recording Intervals 15 choices from 1 sec. to 60 min.
Recording Mode Endless/Onetime
Comm Interfaces Bluetooth 4.0 (Bluetooth Low Energy)
Power Lithium Battery
Operating Environment Temperature: -40 to 80 °C (-25 to 80 °C during wireless communication)
Dimensions H:62mm × W:47mm × D:19mm
Waterproof Capacity IP64
Battery Life Approx. 1 month to 1.5 years
Accessories Temperature Sensor, Lithium Battery, Registration Code Label, etc.