1.Panels, buttons made of high quality stainless steel, has a strong anti-destructive
2.PCB double sided, metal dome lines, access to reliable
3.Key word laser engraving, etching, oil filled, high strength paint
4.3x4 keyboard matrix design.
| Item | Rs232 Keypad |
| Input Voltage | 3.3V/5V |
| Waterproof Grade | IP65 |
| Vandal roof Grade | IK09 |
| Working Life | More than 1 million time per key |
| Key Elasticity | 250g/2.45N |
| Key Travel Distance | 0.45mm |
| Working Temperature | -25℃～+65℃ |
| Storgage Temperature | -40℃～+85℃ |
| Relative Humidity | 30%-95% |
Normally used in public environment applications, such as vending machines, ticket machines, payment terminals.
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