Membrane keypad:
1.Humidity:40C,90% -95%,240 hours
2.Contact bounce:5ms
3.life:more than 500 million times
4.100% QC
Membrane keypad Key Specifications/Special Features:
Material: matte PC (smooth), gloss PC + matte oil, gloss PC, matte PET , gloss PET
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Products: antique switch plate,
light sensor switch