Traducer: 1)The Traducer is totally sealed and imperious to coolant, oil,dirt,dust,and swarf. 2)Withstands the knocks and punding of machines like punch presses,shears and guillotions. 2)Standard scale of up to 11 meaters. 3)Univerial mounting brakets minimise installaton time and provide quick and simple alignment,even on to rough machine or tapered casting. "Life time warranty on sacle" by Aidees Electronics