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Your cart is empty. Apera Instruments EC20 Pocket Conductivity Tester Kit is built for professional conductivity measurement of general water solutions, including tap water, drinking water, hydroponics, horticulture, aquaculture, pools& spas, education, environmental monitoring, etc.
Range: 0-20,000 µS/cm (20 mS/cm); Accuracy: 1% F. S; 1-2 points auto. calibration; 0 to 50˚C auto. temp. compensation.
The platinum black sensor adopts Apera's special processing technology, which minimizes electrode polarization, expands measuring range, and increases the firmness of the electrode, hence ensuring a significantly higher accuracy in a wide-range conductivity measurement than traditional stainless steel electrodes, and is easy to maintain.
The large LCD screen has Conductivity/temp. dual display and indications of completed calibrations and stable readings.
Practical functions to make your EC testing easier and more reliable: 2-point auto. calibration, 0 to 50˚C auto. temp. compensation. Self-diagnosis with out-of-range and low battery warning.
Complete kit: EC20 meter, 2 bottles of calibration solutions and a lanyard all in a portable carrying case. IP67 water-resistant. Up to 1000 hours of use powered by 4 AAA batteries. The product is CE and RoHS certified.
James Gilbert
2025-08-17 17:57:26
Have been using this for over 2 years and it is rugged and great. Recommend you buy the Apera calibration liquids to keep the unit within it's 1% accuracy. It is stable between calibrations, but depending on what you are measuring, you may need to use the calibration liquids to check and reset the unit to stay withing the tolerances more often than my 3 month recal checks. There is a plastic sheet in the case that tells you how to calibrate and use the unit. I always use distilled water to rinse the sensor end off after use.
QuinnTheValors
2025-08-13 17:36:44
I've been using this in my hydroponic system for a while now, and I feel that I've gotten to know the product well.Pros:* accurate (when calibrated)* waterproof, no need to worry about dropping it* really nice build quality, feels nice and sturdy compared to my old cheap $10 TDS pen* comes with calibration solution in nice bottles* has a really nice case, though I use mine almost daily so I don't use the case* it came calibrated well from the factory.Cons:* Seems to lose calibration quickly, starts drifting. Not sure if this is user error or not, but I have to calibrate relatively frequently, as well as soaking the probe in 12.88 calibration solution, otherwise it drifts. The smiley icon will pop up indicating that the reading is ready, yet the reading will continue to climb for 5-10+ minutes after that point, which is not how it's supposed to work.* a backlight or something would have been nice, it can be hard to read the screen when in my solution* setting the unit from auto -> us/cm causes the probe to no longer work at all, I had to factory reset it.* non replaceable probe, so if yours wears out the whole unit is toast.Overall this has made a good companion to my Apera PH20 and I see no real reason to upgrade, other than maybe the backlight issue.
JA
2025-08-08 14:49:16
Apera is the best, I have been using their pH meters for years and like all their pH meters the EC20 is well built, easy to calibrate and most importantly, it is super fast and accurate. Between 0-200 µS displays a decimal for even more accuracy. I know some reviewers don’t like that it only measures in microsiemens (μS) but converting to millisiemens is easy when you know 1 millisiemens (mS) ‎ = 1000 microsiemens (μS). The price is great, it costs just a little more than the cheap knock-off meters and its worth spending a little more to get a real professional EC meter with features you won’t get from the cheap meters. Features like automatic temperature compensation, platinum black probes that give you faster, accurate and consistent readings plus the ability to calibrate the meter gives you peace of mind knowing your meter is always accurate. The EC meter comes with a handy protective case and 2 bottles of calibration solution. Apera makes great products and the EC20 is a winner with a very fair price, I highly recommend.
tk-421
2025-07-07 15:28:19
Wanted to buy a EC that would match my trusty PH20, so I bought the EC20. At first I was disappointed, readings kept drifting- even after calibration. Read the instructions, and it recommends letting the probe sit inside the calibration solution for 10-15 minutes if it hasn't been used for a while. Gave that a shot, did a 2 point calibration and it works perfectly. I've used it daily for 8 days since and its stayed within calibration spec. Would recommend simply because how reliable my PH20 is that ive had for over a year, the EC20 has the same build quality.
Tommy Lee
2025-06-14 10:49:54
I got a lemon and returned it, it wouldnt settle to calibrate. but the kit is 100% on the money i would recomend
George J.
2025-05-31 11:57:36
This is the second tech third I have bought. Very easy to get calibrated and measure your PH or EC. The first one I bought I had let it just sit around for a couple years and felt better buying a new one. The 3rd was my new EC meter.
Jcs
2025-05-16 14:34:08
Works great for me
Julio C. Oyarzabal
2025-04-09 18:27:42
Bought a pH and E.C matching meters. The pH works flawlessly; However, I could not calibrate the E.C meter to save my life. It was off in the lower calibration point, and way way off in the high calibration point. Shipping was fast, return smooth, I guess I got the black sheep of the lot.
anton
2025-03-13 13:17:25
Macht was es soll, Ausstattung ist sehr gut. Nur zu empfehlen.
mifsud
2025-03-04 10:44:21
AUCUNE NOTICE EN FRANÇAIS MESURE incompréhensible ETC ETC
JD
2025-02-01 14:11:18
Deja de funcionar al segundo uso
Giuseppe
2024-12-28 14:36:01
E' un pò complicato calibrarlo ma funzione benissimo, magari inserire le istruzioni in italiano.
ZeitGeist
2024-12-23 17:12:06
Very easy to use but you may have to read the set up instructions a couple of times. I can not give a 100% guarantee for the accuracy of the meter but I have compared the results against two other testers and they were consistent. It comes in a small carry case and also includes a couple of small containers of calibration solution and a lanyard.
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