I would appreciate any recommendation about a device that traccar supports with temperature. If it is a portable tracker, much better.
Here is a list of most popular protocols that support temperature sensors:
atrack, gl200, intellitrack, megastek, noran, totem and tzone
Not sure about specific devices, but you can find devices by protocol here:
About temperature, We use a specific beacon who send temperature (BLE) to a Android smartphone. From that, we have develop a application on Android who send datas (positions, temeratures from sensors...) to our Traacar server.
If you want know more, please send me an email to : email@example.com