Hi John, I believe you are thinking of the Mavic 3E Enterprise. That model has no thermal capability. With the Mavic 3T Enterprise... the "T" designates it as the thermal model.
OP, for your use case, the Autel Lite Enterprise will more than meet your needs.
If you wanted in the future to do other use cases, you may run into trouble.
If you wanted to expand into infrared inspections, make sure that this new model works...