re ir detector cards in article apr monu cc monash edu au craw yoyo cc monash edu au sebastian filzek writes hi people ok heres my problem i keep hearing about these little credit card type of things which detect ir light i think that they are avaliable in the states and even in england but alas i live in australia could someone please inform me if i can get these things over here and if so where and how much sure edmund scientific company e glouchester pike barrington nj the card is on page of the last catalog i got the cost ranges from us to us depending on size and range of wavelengths the card responds to john
