I was poking around Apogee's website looking over their information on the PAR meters they make and this statement jumped out at me.
(Apogee)If data logging capabilities are not important to you, you can also make PAR readings using one of our stand-alone Quantum sensor heads by hooking it up to a high-quality voltmeter.
At just $140 for the SQ-110
(still a lot, but not as bad as the $250-$400 for a meter), I might be interested in trying this.
So has anybody tried this out? Would you try this with your setup?