Water Activity Meter Portable Water Activity Tester with Software & USB Data Function Smart Food Water Activity Tester for Jerky Freeze Dried Food, Range 0~1.0aw (Model WA-60AS)

Great quality

I have used this item pretty often in my manufacturing facility. It has worked accurately and was super easy to use. I needed a water activity meter and the competitive products cost significantly more. I would love something less expensive but comparatively it is pretty solid.

The media could not be loaded. We paid several hundred dollars for this unit just a couple months ago.. We havent been able to contact the seller here or by email at their website with no response.This system we put brand new batteries and it just beeps non-stop. Then we added more new batteries and the same. We have zero support for this and you could have a better experience BUYING FROM SOMEWHERE ELSE!

Handheld easy to use 5 minutes , you are done.

A great choice

Great item.

These handheld meters are about the cheapest bench top/mobile Aw meters you can buy and that is for a reason. I knew it wouldn't compare to something like a Meter Group, Rotronic, etc. It worked well for almost 4 months of minor usage and then suddenly started showing much, much higher Aw values. Nothing had changed in the sampling, instrument management or quality. I used a NaCl solution standard and it was actually within threshold of 0.02 Aw at 0.86, but when evaluating samples in the 0.55-0.70 range, would always display about 0.10 off. I am not even going to both reaching out to the manufacturer, as they clearly won't support the product based on the entrance cost. Time to upgrade to a more reliable instrument and instrument manufacturer. Only use this if can't afford to pay for a better quality Aw meter. Or get insurance on it.

Water activity is perhaps the most important predictor of spoilage in dry cured meats. Naturally, being able to measure accurately and consistently is essential. Though this product reacts to input, there are no hard parameters regarding sample size and temp. It has less sophisticated controls than a handheld calculator and no indication of wether or not the reading has stabilized sufficiently. Granted, it is at the bottom of the scale in terms of cost, but I’ll likely purchase a more expensive WA meter to replace it. Given that botulism is potentially lethal this unit does not provide sufficiently convincing data to assure me that the sample is 100% safe. In the coming months I’ll be interested to test it against more advanced instruments to see if the readings correlate. Given that certainty is the object of such an instrument I can’t recommend this product in good conscience, but I also can’t say conclusively that it does not work.