1.Simple structure and red coated steel casting,with novel pattern and easy installation. 2.Apply to the factory,workshop,etc 1.H.S. Code:85329090002.G.W 14KG3.PACKING SIZE:0.33*0.26*0.25 0.0215CMB/CTN 100PCS/CTN4.SIZE:2" DIA:55mm5.VOLTAGE:24DC/220AC6.BASE:PLASTIC,STEEL,WEATHERPROOF.7.WORKING TEMP:-10 C-+50 C FIRE BELL SH-B1-55MM