stable mechanical trackball for ultrasound or doppler, well used for brand chison, sonoscape, mindray.
¨ With unique mechanical transmission and low noisy...
25mm trackball in japanese style, well used for ultrasound, dopper and kiosk. support USB PS2 and quadrature output
1. 100% splashed water proof design!
2. use ...
38mm optical trackball integrated left middle and right click button, support both USB and PS2 connection.
¨ Adopts laser inductive sensor and stable fully co...