The TR4A series enables data collection and management using dedicated mobile device applications.

Data recorded by the logger is sent to the mobile device via Bluetooth Low Energy, which can then be transferred to our free cloud-based "T&D WebStorage Service" using WiFi or cellular network.

The compact rugged TR41A model comes with a built in sensor, offers our best waterproof rating (IP67) and is operable in a wide range of environments (-40 to 80°C).

Channels: Temperature 1ch (Internal),

Range: Temperature: -40 to 80°C

Comm Interfaces: Bluetooth 4.2 (Bluetooth Low Energy)

The durability and compact size of the TR41A with a gradual resopnse time to changes in temperature make it perfect for tracking cargo temperature in transport.

We offer free mobile apps that let you access temperature data anytime from your smartphone or tablet over Bluetooth.