Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy
NOTE: A few drops of water are added to the electrode cap before the product leaves the factory. This is to maintain the sensitivity of the electrode. Therefore, when you use it for the first time, it is normal to find water droplets in the electrode cap
Accuracy: 0.01 pH; range: -2.00 to 16.00 pH, 32 to 122˚F (0 to 50˚C); Auto. Power-Off: 8 minutes without operation
Easy 1-3 points auto. calibration, recognizes 5 types of solutions (1.68, 4.00, 7.00, 10.01, 12.46); Auto Temp. Compensation (ATC) ensures accuracy in various temperatures (32-122˚F)
High quality replaceable glass pH probe, suitable for regular water solutions e.g. pools&spas, hydroponics, environmental monitoring, cooling towers, beverage, etc.
Large LCD with 3 backlit colors (indicating different modes), dual display of temp./pH, and reminders of completed calibrations and stable readings
The smiley icon indicates stable readings so you won’t have to guess when is the right time to record the measurements
COMPLETE KIT with READY-TO-USE calibration solutions, calibration bottles, storage solutions, AAA batteries, and a lanyard all in a rugged portable case
$103.11
Apera Instruments PH60 Pocket pH Tester is designed for reliable and easy pH measurement for general water solutions, such as in hydroponics, horticulture, aquaculture, pools& spas, water treatment, cooling towers, environmental monitoring, beverage making, education, etc. The meter comes with a replaceable pH probe (PH60-E) for general water solutions pH test. The meter is also compatible with 3 other types of pH electrodes and an ORP probe (sold separately) for different applications such as solid samples and surface tests. NOTE: Add a few drops of 3M KCL liquid (included in the kit) to their test sample (usually low ion-strength liquid like distilled water or RO water), which will significantly help accelerate the stabilization without affecting the pH reading.
Specification: Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy
| Dimensions | 7 × 1.6 × 1.64 in |
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8 reviews for Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy
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$103.11
Bridget –
My previous review is below. But, I’m re-reviewing this item because the meter recently stopped working and dealing with the Company was frustrating to say the least. I purchased this meter in January and in June it stopped working. I use the meter everyday for pH’ing water and nutrient solutions for my plants. One day the meter wouldn’t settle on a read in a nutrient solution. It kept fluctuating all while the “smiley face” was showing – which means the meter is is displaying the accurate pH read. But, while the smiley is there it just keeps reading and dropping. I calibrated the darn thing about 4 times and when put in the calibration solutions it would give a steady read. Add it back to any solutions; spring water, well water, nutrients and it just fluctuates. It never settles on a pH range anymore it just keeps dropping until the battery saver shuts the meter off. It was beyond the Amazon return period so I contacted Apera. We tried to trouble shoot it on the phone. I explained everything in detail to the company. They said it’s still under warranty and had me ship it to them for repairs and testing. I paid to ship it. I hear nothing from them. I contacted them about the meter and they basically said, oh we mailed it back. It’s working fine we calibrated it. I finally receive the meter back and it’s still broken because obviously they didn’t address the issue. I wrote them back and they stopped responding so I let Amazon know and thankfully they kindly offered me a return. Buyer BEWARE “I highly recommend this PH meter. It’s a very easy to use, state of the art meter. It gives super accurate readings, it’s simple to calibrate and the kit comes with starter sizes of the the items you’ll need for storage and calibration. I use my PH60 everyday for horticulture applications.”Read more
Tom R. –
My background is as a lab scientist, and pH was always critical using meters costings $1,500 – $4,000. The main problems with meters are – accuracy and drift. Use Case – we breed freshwater shrimp, so our conditions are freshwater with total dissolved solids of 200-250 and pH is important to shrimp breeding. Accuracy – the only real way to test accuracy is from the calibration solutions – this little beauty was easy to calibrate and you test accuracy after calibration by switching from one test solution to another and look for consistency (to and from 7.00 and 4.00). Drift – this is how stable the reading is – we adjust pH while having the meter in the solution – if it drifts, your reading is meaningless. This meter was very stable at constant pH and Temperature. Hints: This is temperature compensated, but the temperature probe is very slow – give it time to reach a constant temperature reading before trusting the pH reading. Do not try and read pH over more than 20-30 min before returning the probe to the KCl storage solution for at least 20 min – this will protect the probe and give more consistent readings (prolonged exposure outside the storage solution may degrade the probe). Overall – it’s a bunch of cash compared to the pen-type meters, but you may as well dip your finger into a solution and guess whether it feels acidic or alkaline as use a pen-type meter, so if pH matters – I would buy this one – had it for 4 months, take care of it and it will do the job.Read more
Amazon Customer –
Based on the reviews for this pH meter, my expectations were high. It appears well made and has some excellent features (always on backlight and waterproof), but at the end of the day the most important question is does this pH meter accurately measure the pH of solutions? Drum roll…….it does not. Perhaps I received a defective unit. Calibration was an utter failure. Followed direction to the t, yet I continually got ER1 when I moved onto the second calibration (4.0). I tried resetting to factory (option 7) without success. The meter reads the 4.0 and 7.0 solutions as the same pH, so either the pH meter is defective or the calibration solutions provided are no good. I purchased more calibration solutions from a reputable company. I will update review when I try calibrating with different buffer solutions. In the meantime, I recommend holding off on purchasing this meter. Update 1: Tried calibrating to NIST traceable buffers. Still had same issues with calibration. Definitely defective unit. Replacement unit on the way! Will update about soon. Update 2: Amazon sent replacement right away! Happy to say replacement unit works perfectly. No issues with calibration, so the first unit I received was definitely defective. I have been running various tests and comparisons today—Apera is running like a champ! Star rating updated.Read more
Sarah –
I use a ph meter for plant nutrient solution. Previously, I had a couple of cheap China imports, which seemed reasonably accurate for a while, but don’t last long. All ph probes degrade over time, so rather than keep buying cheap, I decided to get a more reliable one with a replaceable probe. This is quite expensive compared to some other brands with good reviews, say the Essentials PH Meter, and @ £29 the replacement probe is not much cheaper than buying a new Essentials meter. However, replacing just the probe reduces waste, and gives you options: there are 4 compatible probe types (all available on Amazon), which you can buy separately as replacements, or to measure different substances. The glass bulb is for liquids, the spear probe for solids, such as foods, soil, the flat probe for paper, cloth, skin etc. And you can buy an ORP (Oxygen Reduction Potential) probe to use with this meter, which tells you the “killing power” of your solution/water (sterilising or not, a simplification of complex subject). The life of the probe will depend on how often you use it, and how you treat it. The probe is supposed to last 12 – 24 months – it’s CE rated for 6 months (for safe use), but that’s NOT its life expectancy. It CAN be stored dry, without degrading it, according to instructions, but storing it dry will affect its sensitivity. So if you store it dry, for accuracy, you need to soak it in the provided solution before use. It can be stored in the soaking solution, but NOT in purified water. The kit comes with everything you need: soaking solution, 2 calibration solutions, batteries, lanyard (quite a long one), 2 containers for calibration, instruction manuals in English and German, as well as a laminated quick reference chart, all in a hard plastic case. The instructions are clear, easy to understand, and contain all relevant info. Instructions say not to use soaking/storage solutions from other companies, but as long as the same (potassium chloride or kcl @ 3 molar strength) and/or for the same type of ph meter, I don’t see why. Will be ignoring that myself (no Apera replacements on Amazon, either). The calibration solutions will last quite a while, the soaking solution is enough to fill the cap to the mark about twice. 2 reviews for the replacement probe said the glass bulb was too exposed and breaks easily. I disagree – the bulb is inside and above the plastic rim, which does have gaps in the side, but doubt it would break if dropped on flat surface. IP67 means it’s dust proof, and can be immersed in up to 1 m of water, or for up to 30 mins, depending on info source. It doesn’t mean it’s hermetically sealed, though. Overall, the meter seems robust, and looks like it will stand up well to any normal use. So far, would recommend, despite quite high price, as seems well worth it, all things considered. Just to add: been using this for a while now, and still very happy with it. Like the back-light feature, and it’s very easy to calibrate.Read more
spencer –
I not use if after i brought it for a while as did not want to calibrate it then let it sit on shelf for few weeks but now i am starting to use it. it is annoying when cal it always out buy like .03 to 0.6 never hits 7 or 4 when calibrating. and it randomly turns off and doesn’t come back on for while. it not the batteries as have new ones put in and it not very good when i cant use this £75 ph pen. lesson learned i will stick to the cheaper ones at £30 they work out the box and are more accurate than this pricey one i found very disappointed but because i left it too long to start using it cannot send the broken product back and can’t find the contact seller any were so if seller sees this can you contact me.Read more
Geof Skalar –
3 Sterne Abzug weil: 1. Das Gerät ging beim ersten Einsatz nach ca.7 Messungen plötzlich gar nicht mehr an. Nur Batterien herausnehmen half und das ist inakzeptabel. 2. Kalibrierung ist zwar vorhanden aber mangelhaft- man kann überhaupt keine Werte anpassen/verändern- sondern nur in die Kalibrier-Lösung eintauchen und dann bestätigen. (laut Bedienungsanleitung) Inakzeptabel. 3. Man kann eigentlich auch nur ins Wasser getaucht anschalten oder es geht sofort aus wenn es nicht im Wasser ist. Außerdem geht es während der Messung auch schnell aus. Automatische Abschaltung ist mMn nicht von Vorteil den es dauert oft eine Zeit bis der tatsächliche Wert angezeigt wird Fazit in dieser Preisklasse nicht zu empfehlen. Für max. 60€ wäre das Gerät inkl Setkoffer in Ordnung. Um100€ bekommen Sie deutscher Quallität PROFI Alternative GHM Greisinger 609850 pH-Messgerät oder Greisinger pH-Messgerät GPH 114(mein Favorit) Die Batterie hält bei wöchentlicher Benutzung 1-2 Jahre. Durch die Sonde ist es flexibler einzusetzen und das Gerät kann auch nicht so leicht abrutschen/ ins Wasser fallen. Beim klassischen Greisinger pH-Messgerät GPH 114 kann man mittels Drehregler den korrekten PH wert beim Kalibrieren exakt einstellen. Dann brauchen Sie aber nochmal ca.10-15€ für die Eichflüssigkeiten + Pufferlösung. Allerdings kommt man damit dann Jahre lang aus. Kaufen Sie umbedingt auch Fläschchen von EU-Markenherstellern (Die mitgelieferten Portionen beim Apera reichen vl. für 2 “sinnlose Kalibrierungen”)- alles in allem also wirklich kein guter Deal. Aber ja ein wirkliche tolles Plastik -Köfferchen ist dabei *Applaus* …ggRead more
John –
The item arrived today in a clearly used state with missing things from the box the probe is still wet from where the last person used the item and didn’t put back one of the items that was in the boxRead more
Dalesman Amazon Customer –
The best around for the money.I deducted a star because my example was delivered missing a sealing ring, Amazon have sent a replacement by return. After years of using cheap ones for my aquarium, and eventually loosing a batch of fish due to inaccurate readings. I have bought this , and it just performs, easily calibrated, excellent online how to videos. Upgrade your ph meter you won’t regret it.Read more