Anyone try it? AquaScapes in Mountain View sells one for $60. I can get one online or other LFS' for $30.
Linkage:
http://www.marinedepot.com/ps_ViewItem~idProduct~RS3153.html
"Description Master test kit for a reef aquarium includes: Phosphate, Nitrate, and Calcium plus a trial size bottles of Marine Success: Calcium, Strontium, Iodine and Trace."