Wired Canvas Snap Cover SensorThe canvas snap sensor is ideal for boats that have a canvas cover or part cover, and replaces a canvas snap for entry alert. When the normally closed alarm circuit is opened, it triggers an entry alert to the boat owner and can also be rigged to sound an audible alarm. A snap cover sensor is a perfect solution for stopping unwanted access to the boat and expensive parts.Specifications:Dimensions: 1.25in (body) 12in (wire)Bronze snap bodyIncludes 1 magnet for existing canvas snapGrounds directly to security inputWorks with MTC and Siren 3 Pro