four:

1. Image sensor: 1/3" color CMOS
2. Effective pixels: NTSC: 628 x 582; PAL: 510 x 492
3. Sensing area: NTSC: 4. 69 x 3.54mm; PAL: 5.78 x 4.19mm
4. Signal system: NTSC/PAL
5. Horizontal resolution: 380 TV lines
6. Shutter speed: 1/50 or 1/60 ~ 1/15,000 second
7. S/N ratio: ≥48dB
8. Minimum illumination: 3.0 lux, F=1.2 (0 lux at IR LED on)
9. Video output: 1.0Vp-p, 750 ohm
10. Power requirement: DC 9V (+/-10%)
11. Power consumption: less than 100mAh
12. Operating temperature: -20°C ~ +60°C