1Auto Gain: OSD, it is displayed on the screen through the function menu to achieve the purpose of adjusting various parameters. 2Excellent Performance: High temperature resistance 20 to 60 . Chip model 2090+811, high sensitivity perfectly adapted to the camera. 3Simple Installation and Parameters: Easy to install, easy to use. Horizontal resolution: 700TVL, chip model: 2090+811. 4High Quality PCB Material: Made of high quality PCB material, sturdy and durable, long service life. 5Widely Used: This tiny camera board can be installed in the most narrow position for security camera system, dashcam, etc. Item Type: Camera Module Material: PCB Size: Approx. 23x23mm / 0.9x0.9inHorizontal Resolution: 700TVL Chip Model: 2090+811 Signal Type: Analog Signal Auto Gain: OSD Video Output: 1Vp-p Audio Output: None System Synchronization: Internal Synchronization Operating Temperature: -20 to 60Backlight Compensation: OSD Minimum Illumination: 0.1lx SNR > 52dB 1 xCamera ModuleManual measurement, please allow some error.