... pressure.Touch Activation ForceTypically 100gControllerSerial (RS232) or USBOpticalLight TransmissionUp to 98%EnvironmentalTemperatureOperating: -20°C to 50°C;Storage: -40°C to ... not affect glass, such as: acetone, toluene, methyl ethyl ketone, isopropyl alcohol, methyl alcohol, ethyl acetate, ammonia-based glass cleaners, gasoline, kerosene, vinegar ...