1.Material: 304# brushed stainless steel.
2.Conductive silicone rubber produced using natural rubber, wear resistance, corrosion resistance, anti-aging
3.Stainless steel keypad frame is available as customer’s request.
4.Double-sided PCB (customized), contacts Gold-finger use of gold process, the contact is more reliable
| Item | Rs485 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% |
The keypad always used in door access system
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