... : Zinc plated steelWindow: Glass Pocket length including thread: 75, 100, 150, 63, 100, 150,200,250,300,400,500,800,1000,1200 ... : bimetal coil Range: -80+40 deg C, -40+80 deg C, 0-50 deg C, 0-100 deg C, high temperature up to 500 deg C for option in Stainless Steel ... or lower than 40sProtection material Work temperature -20 to 60 deg C