Measurement Device: 
Datacolor Spyder3™

Ambient Light Sensor (Built In): 
Yes

Number of Filter/Detector Combination: 
7 Filter/Detector Technology

Accuracy (x,y typical):  
0.0025

Aperture Size:  
27 mm Diameter

Initial Calibration Time:  
5 Minutes

Recalibration Time:  
2.5 Minutes

Ambient Light Shield: 
2 Inches

Mounting Methods:  
Universal Suction Cup, Universal
Counterweight and Tripod Mount

Desktop Docking Base w/Tripod Mount:  
Yes

Physical Dimensions: 
1.5 in.(D) x 3.5 in.(W) x 4 in.(L)

Computer Connection:  
USB