The L2 WiFi Water Sensor and Switch help give customers added peace of mind and water damage protection from condensate overflow. This compact device can be wired directly to the furnace, air conditioner, dehumidifier, or other HVAC equipment. If water overflows the condensate pan or is sensed by the cable, the sensor and switch can turn the machine off or on, and send an alert to the homeowner. The L2 device takes the guesswork out of locating the source of the condensate overflow and automatically stops it.