it is suggested to use greater than 6mm diameter pen tip.
stylus/ passive pen with conductive cloth material will work with all viewsonic’s projected capacitive touch monitors (td1630/td2230/td2430, td2455/td1655, td2760).
pen tip with 8mm diameter is better for td2230.
note:
td2455 and td1655 stylus/passive pen (included in the box) will also work with td1630/td2430/td2760.
every touch panel pixel is different and cover glasses will affect capacitance sensing, passive pen touch sensitivity and touch accuracy.
stylus/passive pen will not have pressure sensor and palm rejection function.