Sinodel Electronic Holding Ltd is a leading switching manufacturer of China, specialized in production of high quality membrane switch and touch screen. Touch screen spec: 1. Operating circuit rating: 4V ~ 6V, 35mA 2. Insulation resistance: 20m ohm or more at 25V DC 3. Dielectric withstand: 250V RMS (50 ~ 60Hz 1min) 4. Contact bounce: 30ms or less 5. Actuation force: 15 ~ 150g 6. Life expectancy: 5,000,000 closures 7. Surface hardness: 3H or more 8. Light transmission: 75 ~ 90% 9. Operating temperature: -10 ~ 60 C Deg 10. Storage temperature: -20 ~ 70 C Deg 11. Humidity: 90 ~ 95% (40C Deg) for 240h