User guide
29 
Table 9 CarollTouch (infrared) Technology Touchscreen 
Specifications 
Mechanical 
Input Method 
Input Method Finger or gloved hand activation 
Electrical 
Positional Accuracy 
Typical centroid accuracy: 2 mm with 1 mm STD error 
Resolution 
Touch point density is based on controller resolution of 4096 x 4096 
Touch Activation Force 
No minimum touch activation force is required 
Controller 
Board: Serial (RS232) or USB 1.1 
Optical 
Light Transmission 
Glass overlay: 90% per ASTM D1003-92 
Environmental 
Chemical Resistance 
Glass overlays: The touch active area of the touchscreen is resistant 
to chemicals that do not affect glass, such as: acetone, toluene, 
methyl ethyl ketone, isopropyl alcohol, methyl alcohol, ethyl acetate, 
ammonia-based glass cleaners, gasoline, kerosene, vinegar. 
Polycarbonate bezel: around perimeter of monitor has some 
sensitivity to hydrocarbons. 
Durability 
Surface Durability
Glass filter option: Surface durability is that of glass, Mohs’ hardness 
rating of 7. 










