Water & refrigerant leak detectors

Leak detectors catch water and refrigerant leaks before they cause rot, mold, or a wrecked HVAC system. Water leak sensors sit by water heaters, sump pits, washing machines, and under sinks, then alert your phone (and some shut off the supply) the moment they get wet. Refrigerant (freon) leak detectors sniff out AC and fridge leaks by sensing the gas — heated-diode and electronic types are the common choices for HVAC work. Acoustic and ultrasonic detectors find buried or slab leaks by sound. Match the detector to the leak you’re chasing: water intrusion, HVAC refrigerant, or hidden plumbing.