HM Digital Pocket Size TDS Meter TDS-4 Water Quality Tester
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Tools and Hardware Reviews of HM Digital Pocket Size TDS Meter TDS-4 Water Quality Tester
Customer Review: HM Digital Pocket Size TDS Meter TDS-4 Water Quality Tester
Summary: 5 Stars
Excellent item! An absolute must have for all users of RO water. Simple, inexpensive, responsive, accurate (at least I know the RO water I make has MANY less TDS in it than the source water). I highly recommend this item.Customer Review: It seems to work
Summary: 5 Stars
It seems to work.. I have no way to gauge if it is truly accurate. :) However, when testing a water source before and after it entered our RO filter, it clearly showed that the RO filter was working. Have had this for about 4 months now and it has worked fine w no battery problems.
It is good that it has a button to save your reading until you take it out of the water. Without that, sometimes it's hard to read the display while the meter is in the water container.
Customer Review: Meter
Summary: 3 Stars
It was less than what I expected but worth the price.
Delivery was timely.
Customer Review: Must have item!
Summary: 5 Stars
I live in area with contaminated water by industry and very old water system.I'm using charcoal water filter for water cleaning which require regular cartridge replacement. Thanks to this device I'm able to judge if it's time to replace filter, as in beginning TDS level of tap water and filtered one differ, but approximately after one month of use readings become almost same.Customer Review: Not That Good
Summary: 2 Stars
This meter guage seems to be off quite a bit. It has registered less parts per million from rainwater I collected coming off our roof than water from our Brita Filter. I also have a Berkey Light water filter, and the meter registers 74 ppm with that. This is an unreliable gauge to me.