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| SPECIFICATIONS | QS4-8 |
| VIDEO | |
| Video System | NTSC / PAL (auto detect) |
| Refresh Rate | 30FPS |
| Video Input | 8 x BNC, 1 Vp-p, 75 Ohms / 1 BNC Recording Playback |
| Resolution | 720 x 480 |
| Auto Switch | 0-99 Seconds |
| Audio Inputs | 4 x RCA |
| Audio Output | 2 x RCA |
| Refresh Rate of 8 ch | 180 FPS |
| Event Record | 60 Groups |
| Alarm Out | No |
| OSD Language | English |
| Video Adjust | Brightness, Contrast, Saturation, Hue, Sharpness, |
| Power Consumption | 5.0W (400mA) |
| Power Supply | 12V DC |
| Dimension | (W x H x D) 8.3′ x 1.6′ x 5.1′ / 21cm x 4 cm x 13cm |
| Operation Temperature | 14F – 140F / (-10C – 60C ) |
