keypad
2.Contact resistance: = 100Ω
3.Insulation resistance: >=250MΩ
4.Bounce time: within 0.5 sec.
5.Adopted the both waterproof and moisture proof functions.
6.The key 5 has a small convex dot for blind personidentification marking to use.
7.The key and frame uses zinc alloy, extra electroplating by hard chromium.
8.Stroke time: 1 million above.
