This is a new old stock FLUKE 445846 circuit board this board has no damage and it comes out of local government lab storage. this piece and other pieces I have listed was last inventoried in the 80's. This and the other pieces I am listing are hard to find parts that I cannot find listed anywhere.    I do not know what type of equipment it is for I can only relay what is stated on package they come in.  Please check out my other hard to find single parts and large lots of parts.  I ship worldwide USPS