Magna Donnelly 36400 Auto Dimming Wedge Mount Mirror with Compass & Temperature Display

Magna Donnelly 36400 (19701) Auto Dimming rear view mirror fits most vehicles (standard wedge mount). With built-in compass display, outside temperature display (in Fahrenheit or Celsius) the mirror is sure to meet all of your interior mirror needs. These innovative rearview mirrors actually sense ambient lights and glare from behind, and dim the glass to reduce annoying glare while driving at night. Installation is easy - only power and sensors need to be wired. Ice warning flashes on display when temperature drops below freezing. Self-calibrating electronic compass module integrated into the mirror housing.