Application: 
Bank ATM, the industry PC numerical control machine telecommunication tax affairs self-service inquiry printer, security a entrance guard , the transportation regulation, peacefully guards against a entrance guard , continues the electricity instrument measuring appliance andso on the multimedia self-service instrument

Technical:
Material: The super quality SUS 304 stainless steel plate  
Surface Treatment: SS front panel with electroplated black titanium for high and durable quality applicatioin.
Pressed button:  long stroke  
Back plate:  aluminum panel 
Trackbal: water-proof stainless steel ball, diameter 19mm 25mm  38mm 50mm  revolves-360   
Lifespan: 2 million   
Electrical life: 50,000 The work hour (power source opens)  
Preserve temperature: -40  ～ +75   
Operating temperature: -25  ～ +70   
Weight : 300 Gram ～ 800 Gram 

Electrical specification 
Voltage : 5 .0VDC +/-5%    
Output connection：USB or PS/2
Electric current : 10 mA
Conforms to the electromagnetic compatibility standard : EN55022(B)
Path ball distinguishing rate : X: > 200dpi Y: > 190dpi