| Model No | GU-U3148 | GU-U3142 | GU-U3140 |
| Image sensor | 1/3 Sony Super HDD CCD | 1/3" Sharp CCD | |
| DSP system | Sony SS1 DSP chipset | Sony SS-11 DSP chipset | Sharp DSP chipset |
| TV system | PAL/NTSC | ||
| Effective pixels | PAL:795H×596V NTSC:811H×508V | PAL:537H×597V NTSC:537H×505V | PAL:542H×582V NTSC:512H×492V |
| Horizontal resolution | 480TVL | 420TVL | |
| Minimum illumination | 0Lux(IR on) | ||
| S/N ratio | 48db(AGC off) | ||
| Video output | Composite 1.0Vp-p at 75ohm | ||
| White balance | AWB | ||
| AGC | Adjustable | ||
| Backlight compensation | Adjustable | ||
| Electronic shutter | 1/50-1/120,000sec | ||
| Gamma correction | 0.45 | ||
| Sync system | Internal | ||
| IR leds | 36pcs×5IR leds | ||
| IR distance | 30m | ||
| Lens | 6.0mm | ||
| Power supply | DC12V±1V/400mA | ||
| Operation temperature | -10°C-+50°C | ||
| Dimension | 80(W)×80(H)×130(L)mm | ||
| Net weight | 400g | ||