Pest Chaser Commercial Rodent Repeller
"For use in motels, hotels, offices, schools, food service areas Complex noise forces rodents to leave area where sound is present Broadcasts a high-frequency RF signal to repel rodents in ceilings, walls and food storage areas Maintenance free — plugs into any standard wall outlet Equipped with one-way screws for secure installation Safe for humans and household pets 3-year limited warranty"