Gentex GENK-21 Autodimming T/C Rear View Mirror
Product DescriptionMake Nightime Driving Safer
Eliminate dangerous glare from the vehicles traveling behind you with an NVS® rearview mirror. It detects glare and automatically dims to preserve driver vision and make nighttime driving safer. The brighter the glare, the darker the mirror becomes. An ICE indicator will display for one minute when the temperature is at or below 37 degrees. This feature cautions you to anticipate road-icing conditions. Compass and external temperature readouts also ensure that while you are driving safer you are also driving smarter.
Automatic Dimming Mirror
Gentex Corporation is the world's leading manufacturer of automatic-dimming rearview mirrors. Gentex automatic dimming mirrors are based on the science of electrochromics, which is the process of reversibly darkening materials by applying electricity. During nighttime driving, the mirrors use a combination of sophisticated sensors and electronic circuitry to detect glare from rearward approaching vehicles and darken accordingly to eliminate the glare and preserve driver vision. They are popular, active crash-avoidance safety feature making nightime driving safer for vehicles throughout the world.
PathPoint™ Compass System
The mirror's compass and outside temperature displays are features of the PathPoint™ Compass System developed by Johnson Controls, a Johnson Controls Company. The compass is a self-calibrating flux gate compass that eliminates manual calibration by the factory, dealer or customer. It detects and compensates for magnetic anomalies caused by bridges, subways and large steel structures. It also compensates for actual changes in vehicle magnetics. Calibration data is stored in memory, which eliminates any requirement for recalibration after losing battery power. The electronic compass shows the direction you are heading in an easy to read digital display located above the mirror. The compass is an extremely accurate computer that displays vehicle headings of N, NW, W, SW, S, SE, E and NE.
Outside Temperature Display
The outside temperature display provides you with a digital temperature reading. When the temperature is at or below 37 degrees the display will indicate "ICE" for a period of one minute. This feature cautions you to anticipate road-icing conditions.
Specifications
Specification Range Typical at 25º
Operating Voltage 9.0 to 16.0 Vdc 12.8 Vdc
Operating Temperature -40º to +65º
Storage Temperature -40º to +85º
Maximum Current >450 milliamps 350 milliamps
High Reflectance >70% >75%
Low Reflectance >10% >7%
Time to change reflectance from 60% to 15% at 25º
<6.0 seconds 3.0 seconds
Time to change reflectance from 15% to 60%
at 25º <8.0 seconds 6.0 seconds
at -20º <30 seconds
Gray Scale Ratio 3
Reverse Override Increase reflectance in
<2 seconds <0.5 seconds
Specification Range
Power Requirment
Battery Input 9-16 VDC
Ignition Input 9-16 VDC
Maximum Ignition - off - draw O W
Display Vacuum flourescent
Accuracy
Compass +/-10°
Temperature -31 to 131° +/-3°
-35 to 55° +/-2°
Weight 18 ounces maximum
Mounts GM Detach (universal)
Operating Temperature -40° to +85° C
Storage Temperature -40° to +85° C
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