Model	BS-121D	BS-121C	BS-121A	BS-121F	BS-121I	BS-121S
Pickup device	1/3 Sony CCD			1/4 Sony CCD	1/4 Sharp CCD	1/3 Sony B/W CCD
Number of pixels	PAL: 752(H)×582(V) NTSC: 768(H)×492(V)		PAL: 512(H)×582(V) NTSC: 512(H)×492(V)			CCIR:512(H)X582(V) EIA:512(H)X492(V)
System of signal	PAL / NTSC					CCIR/EIA
Horizontal resolution	520TV Lines	480TV Lines	420TV Lines			480TV Lines
Minimum illumination	1.0Lux/F1.2(IR OPEN)
Lens mount	3.7mm
Backlight compensation	Auto
Electronic shutter	1/50(1/60)~1/100,000sec
AGC	Auto
White balance	Auto
S/N Ratio	>48dB
Gamma correction	>0.45
Sync system	internal
Operation temperature	-20 ℃~50℃
Dimension(mm)	49(L)X29(W)X54(H)
Weight(g)	155+-5g
Video output	1.0Vp-p/75 Ω
Power consumption	DC12V,<150mA