I had previously submitted a ? regarding a set of ketone strips accuracy. I explained my daily testing regimen. Same time etc. I was basically told to do what i had been doing. That veing cinstitent regimine and to Purchase a test kit. I didnt want to spend my money proving your oroduct was faulty. So i used the strips and got the readings basically ignoring them. When I received the new order I still had one old strip. It tested .2. I recalibrated a new strio and it immediately following the .2 I got a .5 reading. Makes me wonder uf any of it is accurate. I find myself using it and the glucose strios less & less. .