Quote Originally Posted by lefthanded
I just got off the phone with my hydrophonics store and the guy said they range from 35-120 US dollars. Does this sounds right anything decent for a better price? I saw one for 8 bucks online but that sounds super cheap.
I got a Milwaukee ph600 off of ebay for around 25 bucks and it works great. pH 600 Milwaukee Digital pH600 Meter/Tester/Pocket/Pen | eBay