Hello,
I recently purchased USB 2.0 digital ammeter, DC 3A 12V Amp. I was hoping that you could provide us with a certification for the product, to demonstrate that it is calibrated to specifications.
Hello Yelena,
Thank you for writing in.
So sorry that since many products are with similar products, it is hard for us to ensure the product you are referring to.
Could you please tell us your order ID or the link of the product?
Looking forward to hearing from you.
Best regards