Pro-face GP-2300T Manual page 18

2.2 Touch Panel specifications
GP-4301T/TW adopts the Analog type. Because of it, simultaneous 2-point touch
input operaion is not supported. When simultaneous 2-point touch input operation is
performed, GP's operation is as described below.
GP-4301T: Only the first detected touch is effective.
GP-4301TW: When two different points are pushed at the same
time,touch input on the middle coordinates between
those two points is recognized.
If you have used the 2-point touch input on GP-2300 series, change to the 1-point
touch input setting using the switch delay function of GP-Pro EX.
18/59