Bubble in tube indicating type, 2 tubes; scale range data, 0 to 20 degrees ea side of zero, 1 degrees smallest graduation, numerical marking ea 5 deg, accurate to within 1 deg, 0 to 60 degrees ea side of zero, 1 degrees smallest graduation, numerical marking ea 5 deg, accurate to within 2 deg; mtg base data, rectangular shape, plastic, 17 in. Lg over-all, 10 in. H over-all, 5/8 in, deep over-all
