1) mini PTZ high speed dome camera 2) 1/4 inch, Interline Transfer CCD 3 ... containing 20 English letter. independently set the titles for camera itself, as well as Preset position, Pattern scan, ... F1.8 (50 IRE)Sync SystemInternalWhite BalanceATW/AWC/MANUAL /INDOOR/OUTDOORZoom Movement Speed1.75SS/N (Y signal)50 dB ... ID address code, no need manual dial-up.Operation Temp.Indoor: 0ºC ~ 50ºC, Outdoor: -20ºC ...