1.1 Appearance: lens circuit board without deformation, clean no dirt, no false welding, solder spot, bright, each mark symbol should be clearly visible, the focal length is clear; 1.2 Structure size: 38mm×55mm , PCB board thickness: 1.6 mm; 1.2.1 Circuit board dimensions should be 38mmX35mm surface device height should be less than 4mm. 1.2.2 Slot with PCB aperture of 2.5*3.3mm (four positioning holes); 1.2.3 The height of the lens from the front of the PCB is 22mm±0.2mm; 1.3 Environmental and electrical parameters; 1.3.1 Temperature: -20℃~ +60℃, 1.3.2 Working voltage: DC-12V (9-18V); 1.3.3 Working current: ≤30mA; 1.3.4 Video interface output impedance force should be 75Ω(1Vp-p, 75Ω); 1.3.5 The standard color palette shall be distinguished on the camera under conditions of illumination greater than 0.2LUX, and the color of the monitor image shall be consistent with the color palette. 1.3.6 The horizontal resolution of the camera is 600TVL (collectively referred to in the market).

Model	SKY-DL-2389
Camera element	1/4 sensor
Effective pixels	640 x 480
Image format	PAL
Sync mode	Built-in sync
Horizontal resolution	600TVL (market collectively)
Signal to noise ratio	>40dB
Minimum illumination	0.01UX
Backlight compensation	Automatic
Electronic shutter	1/50Sec-12.5uSec
White balance	Automatic
Gamma Correction	> 0.45
Video output	1.0Vp-p75ohm
Power required	12V (9-18V)
Current consumption	≤40mA
Lens	3.6mm   650
Lens horizontal Angle	48 degrees

2.1 The detection camera should meet the requirements of Article 1.1; 2.2 Use vernier calipers to measure the shape, positioning hole, lens height and others of the camera, which should meet the requirements of 1.2.1 in 1.2; 2.3 The camera is connected to the display module and the display for detection, and the image shall not be distorted and other image distortion; 2.4 When the camera is working, the oscilloscope is used to measure the video signal video output amplitude test: 0.8~1.2VP-P/75Ω; 2.5Connect the cable between the camera and the display, place the standard color card 0.8 meters in front of the camera, and the image on the observation monitor should be consistent with the real scene; 2.6High and low temperature test: the temperature is 60℃ for 12h, the power is added to work normally, the temperature is negative 20℃ for 12h, the power test can work normally; 2.7 Camera lens 3.6mm lens horizontal Angle of view 51°, no dark Angle around the image; 2.8 Stability test, continuous aging for 24 hours, there should be no failure; 2.9 camera minimum illuminance test, camera minimum illuminance 0.01LUX.(no LED light).3.1 Vernier caliper with an accuracy of ±0.02㎜. 3.2 24 color standard color card, gray comprehensive test chart. 3.3 regulated power supply for display module camera, 14 inch color monitor.

Optical format	1/4
Pixel array	1280 (H) ×720 (V)
Image resolution	AHD720P CVBS 1000TVL
Video format	PAL/NTSC
Video signal	AHD/CVBS
Lens focal length	optional
Horizontal Angle	optional
Lens height	optional
Working voltage	DC 9-15V
The overall dimension	38×54
Fill light optional with LED light
Analog 600 wire

Q1. Can SKYNEX's Camera module visual doorbell be used in commercial buildings? A: Yes, SKYNEX's Camera module visual doorbell can be used in commercial buildings for security and communication purposes. Q2. How can I request a sample of SKYNEX's Camera module visual doorbell? A: If you are interested in requesting a sample of SKYNEX's Camera module visual doorbell, you can contact their marketing center or customer support to inquire about the process. Q3. Does SKYNEX provide software updates for its Camera module visual doorbell? A: Yes, SKYNEX may provide software updates for its Camera module visual doorbell to improve functionality, security, and compatibility with new technologies. Q4. Can the Camera module visual doorbell be integrated with access control systems? A: Yes, SKYNEX's Camera module visual doorbell can be integrated with access control systems to enhance security and control building entry. Q5. What is the expected response time of SKYNEX's Camera module visual doorbell? A: The expected response time of SKYNEX's Camera module visual doorbell may depend on various factors, such as network connectivity and the connected display's responsiveness.