As an Amazon Associate, we earn from qualifying purchases. Siemens 500-636020 - Model CH-W Siemens . 500-636020 Gallery Attributes Brand name, Manufacturer name, ManufacturerSiemens CategoryL1Safety Equipment CategoryL2Siemens Fire Safety Systems CategoryL3Notification Devices KnownMan, Extra Product NameSiemens 500-636020 - Model CH-W Weight2.00 WeightUnitlbs brandMinimum200 moq2 MPN, SKU500-636020 multiple, tierMinQty11 qtyInStock1-2 Weeks tierPrice1108 Distributor offers SellerSKUMOQIn stockMultiplePrices industrialzone.com500-63602021-2 Weeks11 @ $108.00