Compared to the Reactor 1 gamma camera photos, the numbers for the Reactor 3 are markedly higher. Measurement unit is not noted in the photos, but if it is the same as those for the Reactor 1, it is counts per second (cps).
The location 2 is right below the Spent Fuel Pool, I've been informed.
Location 1 (near the Large Machine Hatch, south side):
Location 2 (west side, below the Spent Fuel Pool):