| Model | QH-MDVR8204H-AI | 
| SOC |  Novotek 98323 dual core+NPU | 
| Audio and Video Inputs | video input | AHD:4ch 1080/25fps | 
| IPC:1-4ch or max 6ch IPC | 
| audio input | 4ch audio iuput | 
| Audio and Video outputs | video output | Default 1-way CVBS output (VGA output optional) | 
| speech output | 1ch audio output | 
| Audio and video parameter coding | video coding | H.264 Main Profile/H.265 | 
| · Resolution | 1080P/720P/D1 optional | 
| audio coding | Default G.726.G.711A optional | 
| storage space | HDD | 1 2.5-inch optional: SSD/HDD hard disk | 
| SD | Support 1 SD card | 
| wireless network | 4G | Supports 1 SIM card. optional: all major communication modules in the world | 
| WIFI | 2.4/5.8G optional | 
| locate mode | BD/GPS | Support for mixed positioning. speed detection. time synchronization | 
| interface | USB | USB2.0 interface. support export data. external engineering treasure | 
| serial port | Support 1 RS232. 1 RS485. can be connected with external sensor | 
| I/O | 4 level inputs. 2 analog inputs. 2 alarm outputs | 
| network interface | Support external IPC. support hybrid NVR function | 
| Intercom | 1 special intercom handheld mark interface | 
| work environment | operating temperature | -20〜+70℃ | 
| operating humidity | · 8%〜90%(No condensation) | 
|   Other | operator schema | remote control、APP、WEB | 
| Gravity sensor | Built-in G-Sensor | 
| Configurable AI algorithms | Face recognition.eople Counting | 
| G-Sensor | Internal G-Sensor | Supports 3 Axis Motion Detection with user set ranges, for X, Y and Z coordinates | 
| Software | PC Playback | A/V, GPS, Mapview, Speed, G-Sensor, etc. files available for playback on PC. Limited playback is also available on MDVR | 
| CMS | Wireless (require Wi-Fi or cellular Option)  real-time A/V monitoring, GPS, alarms, etc. | 
| Software Upgrade | Local or Remotely | Upgrade through the front USB2.0 or remotely via CMS platform | 
| Voltage Input | +8~+36V | 8~36VDC    Please check operational voltage of vehicle prior to the installation of the MDVR and its accessories to prevent possible damage  | 
| Voltage Output | 12V | 12V(+/-0.2V) 1A | 
| Power Consumptin | 12V | 600mA(not include camera and others peripheral) | 
| ACC Detection | ≤4V | Power Off | 
| ≥6V | Power On | 
| Video Input Resistance  | 75Ω | 75Ω | 
| Video Output Voltage  | 2Vp-p | 2VP-P CVBS output analog signal, screen input requires 75Ω resistance  | 
| I / O port | <1V  | Low voltage trigger | 
| >5V  | High voltage trigger | 
| Working Humidity | 10% ~ 95% | 
| Operation Temperature |  -40℃~85℃ | Install in well ventilated area, protected from moisture, heat, dust and vibration | 
| Physical Specifications | size | 199(W)mmx76(H) x 190(L)mm | 
| weight | NW:2.5kg | 
| GW:3.0kg |