Features RoadKey HM-31x:
                            
                            - Blackbox
- Built-in odometer
                                Supported in Wialon:
                            
                            - ADC sensors
- Remote management via GPRS
- Digital sensors
- SMS sending of data
- Remote management via SMS
- Alarm button
- Communication via TCP
The following data should also be added to RoadKey HM-31x unit properties section of Wialon GPS tracking software :
| Device type: | RoadKey HM-31x | 
| Unique ID: | serial | 
Specify the following parameters in configuration software or configuration RoadKey HM-31x for use in Wialon Hosting :
| Server port: | 20182 | 
0 units of RoadKey HM-31x device type are connected to Wialon Data Center. This represents 0% of all AVL Hardware connected.
Below chart represents the dynamic of connections in the last 30 days:
 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                 
                                                                                                