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Hello! I've analyzed the user manual for T&D TR4 series temperature loggers, including the TR41, TR42, and TR45 models. This document provides information on setting up the devices, understanding LCD display, using mobile applications and troubleshooting. I'm ready to answer your questions about the features and operation of these loggers. The manual also contains technical specifications, battery usage, sensor options and steps to maintain the device.
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How far is the communication range?
What kind of smartphone or tablet can it be used with?
Is it possible to extend the length of the sensor?
What might be the problem if the power doesn't come on?
Why communication fails?