VM-1504-HD Series is Mega Pixels HD Multi-Functional Mobile DVR .H.264 compression mode ,supports 4ch realtime 720P Mega Pixels AHD input and Analog satandard defition camera input; Exclusive pre-allocate DVR Special File system Technology,Solving repeatedly wipe cause file fragmentation, solving SD card file system collapse data loss and thus can not find SD card and file garbled,ensuring the integrity of the data .

• Avoid Electric Shock and Fire

• 8V-36V DC power supply is used for this device. Please note the positive and negative terminals during connection to prevent short circuit;
• Please power the device off before connecting any peripheral ;
• Do not touch the power supply and the device with wet hands;
• Do not spray liquid on the device to prevent internal short circuit or fire;
• Do not place any other device directly on top of the camera;
• Do not disassemble the housing without authorization to avoid damage or electric shock;

• Transport and Handling

• To prevent incidental damage to the device during transport. Handle the device with due care. The original packaging materials and carton are preferred;
• Power the device off before handling or part replacement to prevent any damage;

• Appendix 1: Common Questions and Answers (QA) for MDVR

  Q: What shall we do when a problem that could not be solve occurs to the product?

  A: Record product model and software version number and submit detailed problem description to our technical support engineer for analysis. Detailed description will be very helpful to our analysis.

  Q: What shall we do when the mobile device has no video output?

  A: 1. Check the power status of the device. If only one blue indicator is lit up, it indicates that the device is still in standby mode and not powered on; at the same time, check if red or yellow cable of the main power is supplied normally; If not, the device cannot be started.

  2. Check if the display is powered and if the display video is switched to AV status.

  3. Check the connection status of the video output cable and display.

  4. Check the lock status the mainframe lock; the device can be started only when the lock is locked.