Although there are some common market requirements for the mobile DVRs, such as anti-vibration, strong-ventilation capability, easy operation etc, each market for these products also has its own industrial-specific features to consider. According to Dahua, they always take into account the requirments of each individual market and deliver a product to match those requirements with those features integrated to better serve each market.

The DVR0404ME-H and DVR0404ME-U are of the same appearance and their +8V~ +60V wide power supply range makes them suitable for basically all the vehicle types on the market today and effectively avoid device damage caused by unstable voltage, short circuit and power surges. These DVRs support 1 SATA and the case is has an antivibration feature. In addition, with watermark technology and an HDD lock, Dahua presents a reasonable and reliable product in terms of the authentication of recordings.

The built-in GPS module helps to pin the exact position of vehicles, therefore giving the control room personnel a clear overall picture of the on-site events, and quickens the response time to better ensure the safety of personnel on the move. The Wi-Fi and 3G features are interchangeable according to the network environment, and the RJ45 Ethernet port (10M/100M) makes video transmission when it is most convenient, for example, when the vehicle drives into a station or somewhere with an analogue facility.

As for the recently released mobile DVR, DVR0404ME-S, it mainly differs from the above two models through its built-in power-supply and CF card storage. The embedded battery DVR0404ME-S used ensures that power usage is at a minimum, and is therefore more environmentally friendly. Even when the car engine is turned off, the DVR can still work in case of any unexpected event, which can simplify forensics work later. This model supports a maximum of two CF cards.

But of course, sound hardware is just the beginning, Dahua also understands about good software support. Dahua DSS (digital surveillance system) aims to assist you to manage large-scale and critical application tasks with intuitive access and easy operation and try to make its own contribution to "Road Safety Projects".