main features 1.zinc alloy chromed keys and frame,vandal resistant
nductive rubber made of nature silicone
3.Epoxy resin gilding PCB
4.waterproof corrosion resistance,ageing resistance
technical parameters
1.force 160-180 grams,nimble dial-up
ntact resistance < 100Ω
3.service life ≥ 500 thousand
4.Ambient temperature:-20 ~+50°C
5.Relative humidity ≤95%
6.Atmospheric pressure:80~106kPa
customer choice
1.button chrome-plated colors:polished or sandblasted chrome
2.Zinc alloy plasted of the framework’s colors: polished or sandblasted chrome
3.Color the backliting can be custom according to customer's requirement. 4.other usage keypad is available besides using for telephone
