TT-SP3142C specifications: 1) Image sensor: color 1/3 Sony super HAD CCD 2) Video resolution: 420TVL 3) Minimum illumination: 0.5lux 4) Pixels: PAL=500 (H) x 582 (V); NTSC=510 (H) x 492 (V) 5) Sync system: internal 6) TV system: PAL/NTSC 7) Video output: 1Vp-p, 75 ohms 8) S/N ratio: >48dB 9) Power supply: DC 12V, 500mA TT-SP3142BW specifications: 1) Image sensor: B/W 1/3 A1 CCD 2) Video resolution: 420TVL 3) Minimum illumination: 0.05 lux 4) Pixels: PAL=500 (H) x 582 (V); NTSC=510 (H) x 492 (V) 5) Sync system: internal 6) TV system: PAL/NTSC 7) Video output: 1Vp-p, 75 ohms 8) S/N ratio: >48dB 9) Power supply: DC 12V, 500mA TT-SP4140 specifications: 1) Image sensor: color 1/4 Sharp CCD 2) Video resolution: 420TVL 3) Minimum illumination: 0.5 lux 4) Pixels: PAL=500 (H) x 582 (V); NTSC=510 (H) x 492 (V) 5) Sync system: internal 6) TV system: PAL/NTSC 7) Video output: 1Vp-p, 75 ohms 8) S/N ratio: >48dB 9) Power supply: DC 12V, 500mA TT-SP3142 specifications: 1) Image sensor: color 1/3 Sony super HAD CCD 2) Video resolution: 420TVL 3) Minimum illumination: 0.5lux 4) Pixels: PAL=500 (H) x 582 (V); NTSC=510 (H) x 492 (V) 5) Sync system: internal 6) TV system: PAL/NTSC 7) Video output: 1Vp-p, 75 ohms 8) S/N ratio: >48dB 9) Power supply: DC 12V, 500mA