... distance 0-15M 3.Resolution : 40, 80mm 1. Features of STD series Long Working Distance Light Curtain :* Protection height: 0~15M, optional ... , stroboscopic light, welding arc other ambient light.* Common application, long endurance, easy to adjust light beam, high anti vibration.* When ... 110/220VWelcome to contact us ! IBEST ELCTRICAL CO.LTD IBEST STD Series , 0-15M Long Working Distance Light Curtain