Infrastructure monitoring devices, systems, and methods

A leak detection system comprising:

• a first component and a second component of a water infrastructure system, each component comprising a flange and a plurality of fasteners configured to extend thru the flange;
• a first leak detection sensor and a second leak detection sensor;
• a first watertight housing enclosing the first leak detection sensor and configured to isolate the first leak detection sensor from any fluid exterior to the first watertight housing;
• a second watertight housing enclosing the second leak detection sensor and configured to isolate the second leak detection sensor from any fluid exterior to the second watertight housing;
• a first bracket mounting the first leak detection sensor on an exterior surface of the first component, the first bracket comprising a bracket hole and secured to the first component by at least one of the plurality of fasteners of the first component by extending thru the bracket hole and the flange of the first component;
• a second bracket mounting the second leak detection sensor on an exterior surface of the second component, the second bracket comprising a bracket hole and secured to the second component by at least one of the plurality of fasteners of the second component by extending thru the bracket hole and the flange of the second component;
• a first communications device positioned on the exterior surface of the first component and connected to the first leak detection sensor;
• and
• a second communications device positioned on the exterior surface of the second component and connected to the second leak detection sensor, each communications device comprising an antenna, wherein each communications device is a component of an infrastructure monitoring system.