... absorbers like rubber washer, damper to reduce vibration by the greatest extent.1.Specification:SNAxx20 (xx=06, 08, ... -2000mmDetecting height80-2840mmOptical axis pitch20mm 30mm for hands, 40mm for arms, 80mm for bodyPower supplyAC110/220V,24 V ±15 ... sweeps,20 for each axis,for 3 axesDielectric strengthAC1500V, 60sInsulation resistance>100MΩ High Sensitivity Photo-Electronic Safety Device for Machine