Hey Razzapiggy ,
A real cool chick on this site turned me on to a handheld temp gun . :hippy:
I found them on ebay for gas powered remote control cars for cyl. head temps / tuning . Acurate from 0-430 deg. in 1/10 degree increments for like 24.00 or something silly . You can measure the actual leaf surface temps w/ it . Maximium photosynthesis is achieved at like 68-78 deg. or so I been told .
You can rule out canopy temp. probs. super easily . :thumbsup:
Peace
Crispi :jointsmile:


eBay: NEW Atomik Micro Temp Gun 2 Digital Infrared w/Case $$$ (item 250096540577 end time Jul-18-07 08:02:49 PDT)