2MP 1/2.7" AR0237 + FH8550D AHD TVI CVI Analog 4 in 1 1080P Security CCTV CMOS HD Camera Module Board 

WDR, 3D NR，Support four in one

Support OSD + UTC matching

HD, Exquisite images, Strong sense of hierarchy

Transient suppression diode anti-static, Lightning protection design

Low power Schottky diode to prevent reverse power supply

Video output Switch:

CVI:  Long press D

CVBS: Long press R

TVI:  Long press L

AHD:  Long press U

System switch :

Long press M key, Using menu to choose PAL/NTSC

to adjust the back end system to the same