LintGard® LGM7 Dryer Safety MonitorLintGard is about the size of a typical thermostat and can be easily installed on the wall near the dryer. It requires no electric or battery power and plays a vital role in reducing the risk of dryer fires. When used with the linteater rotary dryer vent cleaning system, Gardus products can save homeowners hundreds of dollars in utility and repair bills each year. Takes the guesswork out of knowing when to thoroughly clean the dryer vent Monitors the