Apera InstrumentsPH700-HF Benchtop Lab pH Meter for Strong Acidic Solutions (0 to 2 pH) and/or Solutions Containing HF Acid (up to 2000 ppm)Carbonfree Certified

As a sterile compounding pharmacy, I can not overstate how important it is to have a quality PH meter for our compounded preparations. The Apera PH meter has been a great addition to our process of ensuring we provide our clients with quality products. Will recommend it to any compounding pharmacy or labs needing to get accurate PH readings of their products.

Although some people say it is not accurate, their reviews sound like probe problems. For me, the reading is very fast and stable. I was a bit surprised the reading is super fast compared with others but so far there’s no problem with biological experiments. Will see how long it lasts. I bought 3probes already for the meter as I like it!

Unit seems a bit cheap in some aspects, but display is large and lighted. Unit also seems to be very accurate and not as complicated as you might think at first. While it’s not portable you will get accurate readings that seem to show where the hand held units with probes are slightly off. I will say after owning a couple of apera probes, ph 60 and then their BT zen unit that after purchasing this ph700 I would not purchase those again, they performed erratically and fell apart as they are poorly constructed. I hope this one will erase that feeling and last a long time.

Muy buen producto. Medición muy confiable.

The probe was so accurate I. The beginning but then was off by .3 all the time which isn't much however it's brand new. Maybe the temperature had something to do with that. Other than that easy to use and very popular. You cannot however replace electrolyte piece at bottom. You have to buy a new one.

Surprisingly good pH meter for the money. Although only a single junction gel filled electrode, it had a solid response time and calibrates very easily. Additional specialty probes including higher end liquid filled ones are available and very reasonably priced.The screen is easy to read, calibration procedure is intuitive and the arm, while not articulated, is still very handy. Another nice touch is that the slope percentage is shown after calibration, which gives you a heads-up in case you fumbled the calibration or if the probe is on its way out.Overall I'm impressed by the value for money and would definitely consider one of their higher research grade units for more serious/professional lab use.

The unit responds very quickly to standards and samples alike. Easy to setup and use. Would definitely recommend it.

My first time ever taking the time to write a review on Amazon, that's how disappointed I am in this product. Bought this after hearing from several other companies in my field that it was a great meter for the price. Turns out it's terrible and wildly inaccurate. Not only can it not get a decent reading even close to the buffer solution it can't even keep a constant value. It jumps all over the place. Went through 3 probes with them too including their more expensive probe in hopes it would resolve the issue but to no avail. DO NOT BUY THIS METER.