1. Button: 68 buttons, imported printed brushed SUS304 stainless steel.

2. Button size: ordinary buttons: 14mm * 14mm, 14 * 28mm, 14 * 90mm

3. Button design: square convex button, or square flat button, laser engraving and then etching patterns and characters, and filling in high quality and durable environmentally friendly imported ink

4. Key life: operate more than 5 million times per key.

5. Button strength: 1.2N +/- 0.1N (contact force)

6. Mutual capacitance sensing:

X/Y axis position detection resolution: 40counts/mm

Trackball resolution: X>200dpi; Y>190dpi (optional mechanical or photo sphere)

x/y position report: relative

Sensing range: 65*49mm

Touch tracking speed: >1.016 m / sec

Power supply voltage: 5V ± 0.25V

Rated current: 17 mA

7. Weight: 1.5kg

Electrical parameters:

1. Working voltage: DC +5V +/- 5%

2. Working current: 10mA

3. Electromagnetic radiation: EN50081-1

4. Electromagnetic immunity: EN50082-1

5. Electromagnetic compatibility standards: 89/336/EEC EN55022:1988+A1:2003 EN55024:1988+A1:2001+A2:2003

6. Expected service life: >5 years

7. Button switching technology: conductive carbon particles / gold-plated PCB

8. Operating System: DOS/Windows95/98/NT/ME/2000/2003/XP/Vista, Linux, Unix, Mac osx

Environmental adaptability:

1. Working temperature: 0°Cto+60°C

2. Storage temperature: -25°Cto+70°C

3. Relative humidity: 30-90% (no condensation)

4. Atmospheric pressure: 60-106Kpa

5. Salt spray test: 96 hours, IEC60512-6

6.40 °C high humidity test: 21 days, IEC60512-6

7. 85 ° C high drying test: 10 days, IEC60512-6

reliability:

1. Dustproof and waterproof: IP65 (surface)

2. Riot rating: IK09

3. Key life 2 million operations / per key

4. Average failure time > 50,000 hours

5. Average repair time <30 minutes