Model: ELP-620HL is waterproof&Vandal Resist dome cameras with dual lens.
Image Sensor:1/3''Sony Color dual CCD /dual lens
Scanning System: 2: 1 Interlace
Horizontal Frequency: PAL: 752(H)*582(V); NTSC: 768(H)*494(V)
S/N Ratio: More Than 48dB
Resolution: Color 540TVL  B/W 600TVL
Mini IIIumination: 0.1-0Lux(IR)
IR Distance:25-35 M
Synchronization: Internal
Lens: C/CS Mount Lens:F=3.6MM
White Balance: Auto Tracking white Balance
Backlight compensation: ON/OFF(switchable)
AGC: ON/OFF(switchable)
Gamma Characteristic: 0.45
Video Output Level: 1.0 Vp-p 75ohm, Negative
Operating Temperature: -10degreeC to +50degreeC, RH95% Max
Shutter Speed(8 Steps): 1/60 ~ 1/10, 000 Sec. (NTSC) 1/50 ~ 1/10, 000 Sec. (PAL)
Supplied Voltage: 12VDC/24VAC/95VAV-250VAC