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Can PPM or EC be measured with a volt meter
Hello getting ready to purchase a ppm meter, probably one of the 15 to 20 buck ones on ebay. Anyway since a volt meter measures resistance couldn't that be used to measure ppm?
dimebag
Thread
Oct 31, 2007
Replies: 2
Forum:
Hydroponics / Aeroponics
D
Can you use an HPS bulb in a MH ballast
Hello was reading that you could use a MH bulb in HPS ballast or vice versa long as they are same wattage is this true....thanks.....Dimebag
dimebag
Thread
Feb 5, 2007
Replies: 14
Forum:
Indoor Growing
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