Metal access control 12 keys RS232 numeric keypad B720
RS232 12 button metal steel remote control keypad manufacturer B720
Technical Parameters
| 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% |
| Atmospheric Pressure | 60Kpa-106Kpa |
| LED color | Customized |
Features
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
Users select
1.Buttons layout could be customized as clients’ request.
2.With the exception of the telephone, the keyboard can also be designed for other purposes.
