A Linen Tester with a black plastic housing and a single glass lens with a magnifying power of 4x.
The lens diameter is 1.50" (38.1mm) and the square cut out on the base measures 1.88" x 1.88" (47.75mm x 47.75mm).
Ideal for use in environments where corrosive chemicals are used that would attack metal framed units.
Conveniently folds flat for storage.
Historical Model #s: LNS-0030, LNS-0030A
