Introduction 

 Sphere made of stainless steel solid precision metal ball or the ball of phenolic resin 
 Optional: mechanical, optical, backlight 
 Ball size: (optional) 25mm, 36mm, 38mm, 50mm 
 PS / 2 Interface USB Interface 
 Waterproof, dustproof, anti-riot, shock, anti-corrosion, anti-static 
 Application areas: telecommunications and check the machine funded kiosks, medical equipment, instruments, etc. 
 Mechanical properties: key stroke: 2mm 
 Metal / phenolic resin ball diameter: 25mm, 36mm, 38mm, 50mm 
 Key life:> 3,000,000 times 
 Ball life:> 2,000,000 
 Metal back cover: The complete protection of electronic parts (optional) 
 Pressure: 0.6N ± 0.1N 
 Ball colors: black, white, green, blue, red, optional 

 Electrical properties: 
 Voltage: 5VDC ± 10% 
 Protection Level: IP65 (static) 
 EMC standard: EN55022 (B) 
 Efficacy: ≤ 1.00W (dynamic) ≤ 0.2W (static) 
 Of adapting to the environment: Operating temperature: -10 ℃ to +60 ℃ 
 Relative humidity :30-90% RH 
 Storage temperature: -20 ℃ +70 ℃ 
 Relative Humidity: 30% -90% 
 Atmospheric pressure :60-106Kpa 
 Reliability: MTBF> 20,000 HMTTR <30min 
 Operating System: Compatible DOS/Windows95/98/NT/ME/2000/XP 
 Evaluation and certification: FCC, RoHS, UL, and CE certification