What is Reddit's opinion of Mudder Digital TDS Meter with Temperature Monitor, Water Quality Tester with Range of 0-9990 ppm?
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Mudder Digital TDS Meter with Temperature Monitor, Water Quality Tester with Range of 0-9990 ppm

By popularity on Reddit, this product is:

#4 in Pond Test Kits & Thermometers

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1 review of this product found across Reddit:

Get yourself one of these [TDS pens].{http://www.amazon.com/Mudder-0-9990ppm-Hydroponics-Laboratory-Scientific/dp/B00MRLMG0M/ref=sr_1_2?ie=UTF8&qid=1424212083&sr=8-2&keywords=tds+meter}

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