WHAT?!

pH 600 Water Tester Meter Milwaukee pH600 Hydroponics - eBay (item 370459245051 end time Dec-22-10 12:42:53 PST)

first one on the list. 20 bucks.

ppm meter is another 20.

The calibration packets are 3 for 5 bucks. Just ordered some the other day. Bought the storage solution once and thats it... I store it in tap water now.