Automotive, Marine & GPS
FIRST ALERT SFA275 Parking Alert Sensor
Easily mounts on wall, workbench or shelf in garage; Ultrasonic range-finding technology; Uses 3 different light indicators with alert sound based on range from sensor; On/off switch; Powered by included 120V AC adapter (included) or 9V battery (required); Includes mounting tape; Display unit dim: 7.28"H x 2.4"W x 1.22"D; Sensor dim: 3.23"H x 2.4"W x 1.46"D;
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