As an Amazon Associate, we earn from qualifying purchases. Siemens 500-636117 - Model SPEXT-W Siemens . 500-636117 Gallery Attributes Brand name, Manufacturer name, ManufacturerSiemens CategoryL1Safety Equipment CategoryL2Siemens Fire Safety Systems CategoryL3Notification Devices KnownMan, Extra Product NameSiemens 500-636117 - Model SPEXT-W Weight1.00 WeightUnitlbs brandMinimum200 moq17 MPN, SKU500-636117 multiple, tierMinQty11 qtyInStock1-2 Weeks tierPrice112 Distributor offers SellerSKUMOQIn stockMultiplePrices industrialzone.com500-636117171-2 Weeks11 @ $12.00