User manual
UserManual:1528L
SW200095RevA,Page34of39
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. 










