You need now

I was at two gas stations, a workshop and a local auto parts dealer and no one could tell me if my antifreeze is or sell me such a device okay. Now I have even one and am therefore whatever. One need only rarely, but if you need it then you need it halt.

Operation is easy and foolproof, readability is very good, scale goes down to -40 degrees, the water temperature is compensated. After use, be sure rinse otherwise the antifreeze glued the innards.