Yes the back showing the + and - should have given it away, but then again it is all in Chinese and cant be read anyway. The auction listing was this:
Digital Blue LED AC 0 ~ 700V Voltage Panel Meters
I would think it was for AC.
I have contacted the seller and it even was a USA seller based in NY that I got it from. They have agreed to give my money back for the meter and still had no idea that the meter was for DC after I had explained it to them.
So if you need a meter don't buy one from bestelectronic-store