What is Reddit's opinion of HM Digital PH Meter PH-80 Handheld Water Resistant Water Quality Tester Pen with ATC for Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Water?
From 3.5 billion Reddit comments

HM Digital PH Meter PH-80 Handheld Water Resistant Water Quality Tester Pen with ATC for Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Water

By popularity on Reddit, this product is:

#113 in Lab pH Meters

Check price on Amazon

1 review of this product found across Reddit:

PH Meter: https://www.amazon.ca/HM-Resistant-Hydroponics-Gardening-Aquariums/dp/B01CP9Q192/ref=sr_1_11?ie=UTF8&qid=1505305391&sr=8-11&keywords=ph+meter

TDS is a cheapo off of Amazon.

Very happy with both.

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