The VX-4100/4200 series mobile radios are no longer manufactured, however accessories and replacement parts may be available. Please contact your Vertex Standard representative for additional information. High Capacity, Enhanced Mobile Communications Dual-Band Receive For InteroperabilityUsing the Sub-Receiver option, get dual-band receive for greater flexibility and interoperability for full situational awareness. Single VHF or UHF transmit with dual-band receive helps to make communications more productive. When Safety CountsAs with all Vertex Standard mobile radios, the VX-4100/4200 Series has built-in Emergency alert for enhanced driver safety. A panic button can be triggered by the front panel button to alert the dispatcher when problems arise. In addition, these mobile radios have an internal emergency microphone on the front panel so the driver can continue to communicate with dispatch when unable to use a speaker microphone attachment. Horn alert capability enables base station operator to issue a 2-Tone, 5-Tone or DTMF signal remotely to activate the cars horn to go off as an additional emergency alert to draw attention to the vehicle. Exclusive Auto-Range Transpond System (ARTS)Designed to inform the user when out of communication range with another ARTS-equipped station. If out of range more than 2 minutes, the radio senses no signal and beeps to alert the user. The base station can then alert the field unit to move back into range. A great solution to keep your workers coordinated.