China Robust LED Blacklight Metal Telephone Keypad, Public Phone Keypad, Find details about China Keypad, Metal Keypad from Robust LED Blacklight Metal Telephone Keypad, Public Phone Keypad
button number | 12 |
material | zinc alloy and special plastic |
contact resisitance | <100Ω |
service life | 500000 hits |
relative humidity | <95% |
protection degree | IP65 |
ambient temperature | -30ºC~+60ºC |