I'm searching for a lightmeter in the range of $150 or so. I have a few requirements I am trying to meet. 1. It can only use AA batteries. I don't want oddball batteries for anything. 2. I'd like to be able to read degrees K directly in ambient light. 3. I would prefer NOT to have ANY extraneous features like alarm clocks, GPS, built-in clocks of any kind, can openers, and so on. Suggestions appreciated. New is preferred to old.