External switch control or single button control buit in dispaly.
Kelly 
Europe contact
| Specifications | |
| Dimensions/ Size | L 81mm W 27mm H 26mm |
| Weight (g) | 45g |
| Material | ABS |
| Operating Temperature | -20°C ~ 60°C |
| Core Data | |
| Display Type | 1.3"OLED |
| Nominal Voltage | DC 24V/36V/48V |
| Current | 12mA /36V |
| Mounting Parameters | |
| Communication | UART/CAN |
| Handlebar for Holding | Built-in |
| Display Information | PAS level / speed / trip /ODO / light status / battery indicator /error alarm / walk etc. |
| Data Port | Bluetooth(Optional) |
| Tests & Certifications | |
| Waterproof | IPX5 |
| Cerifications | RoHS/CE |
