Description
DH-A42BJA2
Experience the superior clarity of the
Dahua A42BJA2 4MP Eyeball Camera
for vast coverage and superior image details. The 4 MP HDCVI series leverages existing coax infrastructures to deliver forensic-level images seamlessly and over long distances. The camera offers a 2.8 mm fixed lens, a multi-language On-screen Display, and HD/SD switchable output. The camera is ideal for hosting diverse applications — Night Color and True Wide Dynamic Range allow the camera to operate in any lighting condition and the IP67 rating makes the camera suitable for the harshest environments.
1/1.79-in. 4 MP Progressive-scan CMOS Sensor
4 MP (2560 x 1440) at 30 fps Maximum Resolution
2.8 mm Fixed Lens
Night Color Technology for Color Images in near-dark Applications
True Wide Dynamic Range (120 dB) and 2D/3D Noise Reduction
Supports Multiple Video Formats: HDCVI, CVBS, AHD and TVI
Built-in Microphone
HD or SD Output, Switchable
IP67 Ingress Protection
Designed for Extreme Temperature Environments
Five-year Warranty (applies to products sold through an authorized Dahua Dealer.)
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Technical Specifications
Series
Pro
Body
Eyeball
Image Sensor
1/1.79-in. CMOS Sensor
Resolution
4 MP (2560 x 1440)
Angle of View
Horizontal: 112.7°
Vertical: 60.2°
Lens Type
Fixed lens, Fixed iris
Focal Length
2.8 mm
Min. Illumination
Color: 0.002 lux at F1.6
Day/Night
Color
WDR
120 dB
Video Output
One (1) BNC, Transmits HDCVI High-definition signal or CVBS, AHD or TVI Channel, switchable
Frame Rate
4 MP at 30 fps or 1080p at 30 fps
IP Rating
67
Operating Temp
–40° C to +60° C (–40° F to +140° F)
Power
12 VDC ± 30%
< 7.1 W Camera Image Sensor 1/1.79-in. CMOS Sensor Effective Pixels 2560 (H) x 1440 (V), 4 MP Scanning System Progressive Electronic Shutter Speed 1/3 s to 1/100,000 s Minimum Illumination Color: 0.002 lux at F1.6 S/N Ratio More than 65 dB Lens Lens Type Fixed Lens / Fixed Iris Mount Type Board-in Focal Length 2.8 mm Maximum Aperture F1.6 Angle of View Horizontal: 112.7° Vertical: 60.2° Focus Control Auto, Manual Close Focus Distance 1300.0 mm (51.18 in.) DORI¹ Distance - Detect 58 m (190 ft) DORI¹ Distance - Observe 23 m (76 ft) DORI¹ Distance - Recognize 12 m (38 ft) DORI¹ Distance - Identify 6 m (19 ft) Pan/Tilt/Rotation Range Pan: 0° to 360° Tilt: 0° to 78° Rotation: 0° to 360° Video Maximum Resolution 4 MP (2560 x 1440) Frame Rate 4 MP at 30 fps or 1080p at 30 fps Video Output One (1) BNC, Transmits HDCVI High-definition signal or CVBS, AHD or TVI Channel, switchable Video Transmission² RG-59/U Coax: 720p: 800 m (2624.67 ft), 1080p: 500 m (1640.42 ft), 4 MP: 500 m (1640.42 ft) RG-6/U Coax: 720p: 1200 m (3937.01 ft), 1080p: 800 m (2624.67 ft), 4 MP: 700 m (2296.59 ft) CAT 6 UTP: 720p: 450 m (1476.38 ft), 1080p: 300 m (984.25 ft), 4 MP: 300 m (984.25 ft) Day/Night Color OSD Menu Multi-language Backlight Compensation BLC, HLC, True WDR WDR 120 dB Gain Control AGC Noise Reduction 2D, 3D White Balance Auto, Manual Certifications CE EN55032 EN55024 EN50130-4 Safety UL60950-1 CAN/CSA C22.2 No.60950-1 Electromagnetic Compatibility (EMC) FCC CFR 47 Part 15 subpart B, ANSI C63.4-2014 Interface Audio³ Input: One (1) Channel, RCA Jack, plus One (1) Built-in Microphone Electrical Power Supply 12 VDC ±30% Power Consumption Maximum 7.1 W (12 VDC) Environmental Operating Conditions –40° C to +60° C (–40° F to +140° F), Less than 90% RH Initiate startup above –40° C (–40° F) Storage Conditions –40° C to +60° C (–40° F to +140° F), Less than 90% RH Ingress Protection IP67 Construction Casing Aluminum Dimensions ø106.0 mm x 99.20 mm (ø4.17 in. x 3.90 in.) Net Weight 0.50 kg (1.10 lb) Gross Weight 0.62 kg (1.37 lb) 1. The DORI distance is a measure of the general proximity for a specific classification to help pinpoint the right camera for your needs. The DORI distance is calculated based on sensor specifications and lab test results according to EN 62676-4 , the standard that defines the criteria for the Detect, Observe, Recognize and Identify classifications. 2. Transmission distance results verified by real-scene testing in Dahua's test laboratory. Actual transmission distances may vary due to external influences, cable quality, and wiring structures. 3. The default audio input is via the built-in microphone; users must access the Advanced menu to switch the audio input to the cable option. The camera accepts audio from only one input source. Downloads Data Sheet Operation Manual Functions: Night Color Technology Dahua cameras with Night Color Technology incorporate a high-performance sensor and a large aperture lens to produce crisp, clear color images in low light environments. This light-sensitive technology allows the camera to capture more available light and reproduce color images with superior detail and contrast. Dahua Night Color Technology cameras are ideal for applications with at least 1 lux of ambient or artificial light, including parking lots, schools, urban streets and museums. Three Signals over One Coaxial Cable HDCVI technology simultaneously transmits video, audio, and data over a single coaxial cable. Dual-way data transmission allows the HDCVI camera to communicate with an HCVR to send control signals or to trigger alarms. Long Distance Transmission HDCVI technology guarantees real-time transmission over long distances without loss of video quality. HDCVI cameras provide the same resolution as most IP network camera systems using existing RG-59, RG-6, or CAT 6 UTP cabling. Simplicity HDCVI technology seamlessly integrates traditional analog surveillance systems with upgraded, high-quality HD video, making it the best choice to protect security investments. The plug and play approach enables full HD video surveillance without the hassles of configuring a network. Broadcast-quality Audio Audio information is used as supplementary evidence in video surveillance applications. This HDCVI camera transmits audio signals over the coaxial cable, eliminating the need for separate audio wiring. In addition, the camera uses unique audio processing and transmission technology that eliminates noise to best duplicate source audio, guaranteeing high-quality and highly effective audio information. Multiple-format Support The camera supports multiple video formats including, HDCVI, CVBS, AHD, and TVI. The camera can switch between these four formats via the OSD menu or the switch located on the video output cable, making the camera compatible with not only HDCVI DVRs but also most existing HD / SD DVRs. True Wide Dynamic Range The camera achieves vivid images, even in the most intense contrast lighting conditions, using industry-leading wide dynamic range (WDR) technology. For applications with both bright and low lighting conditions that change quickly, True WDR (120 dB) optimizes both the bright and dark areas of a scene at the same time to provide usable video. Protection The camera is subjected to rigorous dust and water immersion tests and certified to the IP67 Ingress Protection rating making it suitable for demanding outdoor applications. The camera allows for ±30% input voltage tolerance, suitable for the most unstable conditions for outdoor applications, and its 4KV lightning rating provides effective protection for both the camera and its structure against lightning.
