APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

Easy auto calibration with buffer recognition; auto. temp. compensation (ATC) ensures accuracy in various temperatures (32 to 122F)
Backed by Apera quality pH sensor with low impedance, ensuring high response rate
Comes in a rugged carrying case with pH 4&7 buffers and a lanyard
Auto recognition of stable values improves consistency, so you don't have to guess when to manually hold measurement
Up to 2000 hours' continuous operation, powered by AAA batteries
Simply the most reliable pocket pH tester with the best value for general-purpose pH testing e.g hydroponics, horticulture, pools and spas, water treatment, beverage making, education, environmental monitoring, etc. Up to 3 points of Auto. calibration and 0 to 50˚C Auto temperature compensation (ATC), 0.1 pH Accuracy with 0 to 14.0 pH measuring range; Auto. recognition and indication of stable values improves repeatability, saving you the trouble of guessing when to manually hold measurement. PH20 comes with a complete kit of premixed calibration solutions (4.00 and 7.00), 4 AAA batteries, and a lanyard all in a portable carrying case. Smart Self-diagnosis, warning of incorrect buffer solutions and incorrect calibrations. IP67 water-resistant. Up to 2000 hours' operation powered by AAA alkaline batteries. The product is CE and RoHS certified, and is manufactured under an ISO 9001: 2015 certified quality system.

Top reviews from the United States

Should have bought this sooner!!
Previously I used the well known yellow one well this season I started out knowing something was wrong with my process because nothing was growing. Bought this and compared immediately and my ph was 2.6 points off from the apera! What a joke so I've lost 1 full month already to ph'ing. If your on the fence or thought about it ust do it, buy it because you won't regret it. Very nice hard case with all the documents,certs, and instruction, 2 pre-made solutions 7 and 4 for double checking time to time. I really liked that I can put the storage solution in the cap close up the case and place it anywhere I want like a book and it's perfectly upright with the probe in the solution. For $65 this guarantees you have good water within range for optimal growth.. how can one go wrong with this? Everything in one HARDCASE. I did purchase the 3m kci solution separately although you can get away with using alittle 4.0 solution that comes with the kit. I will update after I get a full season using it but so far it has already saved my season! HIGHLY RECOMMENDED