Model			KIR-639A40		KIR-409A40	KIR-405A40	KIR-2421A40
Image Sensor			1/3"SONY			1/3"SONY	1/4"SHARP
Horizontal Resolution			540 TV Line Low lllumination		540 TV Line	420 TV Line
Pixels			PAL:795 (H)×596(V)                         NTSC: 811 (H) ×508 (V)			PAL:500(H)×582(V)  NTSC:510(H)×492(V
TV System			PAL/NTSC
IR LEDs			￠5X42PCS (working distance 40M)
Lens			4-9mm manual ZOOM Lens
Sync System			Internal
Usable Illumination			0.001Lux/F2.0		0.8Lux/F2.0	1.0Lux/F2.0
S/N Ratio			≥48dB (AGC OFF)
Gamma Correction			0.45
Video Out			Composite Signal (1.0Vp-p, 75Ω)
Scanning System			PAL:625 Lines, 50 Field/Sec;NTSC:525 Lines, 60 Field/Sec
Electronic Shutter Time			Auto:PAL 1/50-1/100,000Sec;NTSC 1/60-1/100,000Sec
Operation  Temperature			-10℃ ~ +50℃ RH95% Max
Storage  Temperature			-20℃ ~ +60℃ RH95% Max
White Balance			Auto
Power Source			DC12V 1000mA
Dimension			220(W)x120(H)x83(D)mm
Weight			1.1kgs