Car battery kept draining overnight, even after replacing the relay. I opened the cluster and used the P3 to scan the board. There was a faint warm line between two decoupling caps near the CAN transceiver. Didn't even register on the multimeter. Pretty sure it was leaking under 1mA, but the thermal picked it up. Replaced the cap and the drain stopped. That kind of detail really only shows up with higher resolution.
Bought P2 from Thermal Master before, but thats a fixed lens, and I can only use my wife's android device to work. P3 is really good option for me, hope that could be released on market earlier