This product is bomb !!
I'm not sure about the accuracy, but it gives you an idea. May be too sensitive sometimes.
Was as described and works like we had hoped. Will do business againU
The bags are good quality, the set looks nice, comes with all you need but the small cup socks, can't put a single oxigen absorber inside.
Recieved quickly and was sent a gift coupon as well. These are very good quality and thick bags. I highly recommend these. I used them to package long term food storage and worked perfectly. I ordered the one gallon bags.