There seemed to be a breakdown in communication between customer service and shipping. I stated in several emails that I was interested in quicker delivery service. I had to wait More than a week to receive my order. That’s unheard of these days. So your next question on here is, “was your delivery on time?“ so my question would be on time according to who? I will have to answer this question with a resounding no. The other comment I need to make is that I was not told that I would need to purchase additional items for the calibration portion. I paid 20 bucks and find that I need other things. Not very happy about that either.