Convenience
https://multimedia.3m.com/mws/media/312517O/3mtm-wired-communications-systems-full-line-catalog.pdf
WEB3M™ Loop Detector, External, 120 VAC 78-9236-6456-5 Use to detect vehicles in service or drive-thru areas. Use with either loop listed below. 3M™ Magnetic Loop Kit (Saw-in) …
DA: 22 PA: 4 MOZ Rank: 63