DH-HAC-T1A21P-U-IL-A is a 2MP Smart Dual Light HDCVI fixed-focal eyeball camera built for people who want full-color night footage combined with active deterrence in a compact dome design. Made by Dahua, this camera belongs to the Cooper Series and is well suited for homes, small offices, and shops that need reliable indoor and covered-outdoor surveillance.
At the core of DH-HAC-T1A21P-U-IL-A is its 2MP resolution, capturing full HD 1080p footage at up to 30fps through a 2MP CMOS sensor. This ensures sharp, detailed footage across a wide 100-degree horizontal field of view, giving the eyeball design genuinely strong coverage for its compact size.
Smart Dual Light is where DH-HAC-T1A21P-U-IL-A truly stands out. The camera switches automatically between IR and warm light for better visibility at night, with night vision reaching up to 25 meters even in total darkness, delivering clear, colored footage instead of the grainy black-and-white output typical of standard IR-only cameras.
Format flexibility is a major strength as well. DH-HAC-T1A21P-U-IL-A supports four video formats including CVI, TVI, AHD, and CVBS, giving installers genuine freedom to pair it with a wide range of existing DVR systems without needing to overhaul the whole setup.
Audio capability adds real value too. DH-HAC-T1A21P-U-IL-A includes a built-in microphone, adding audio recording without needing any extra setup or additional cabling, making it a genuinely complete surveillance solution on its own.
Image quality features round out the experience. DH-HAC-T1A21P-U-IL-A includes DWDR and 2D DNR processing, which help reduce glare and noise for clearer images across a variety of lighting conditions, keeping footage usable even in mixed indoor lighting.
Design is another strength worth noting. The compact dome-style eyeball design fits easily in most indoor spaces, and the camera’s fixed-focal lens keeps installation genuinely simple for homeowners, shopkeepers, and small offices without needing professional calibration.
Reliability and value round out the package nicely. DH-HAC-T1A21P-U-IL-A is a budget-friendly option that still delivers smart night vision, flexible video output, and simple setup, making it well suited for anyone needing dependable indoor surveillance.
Whether monitoring a home hallway or a small office, DH-HAC-T1A21P-U-IL-A delivers vivid full-color clarity, Smart Dual Light deterrence, and built-in audio in one compact HDCVI eyeball camera.
Full technical specifications are listed below.
DH-HAC-T1A21P-U-IL-A CAMERA & LENS SPECIFICATIONS
| Feature | Specification |
| Device Model | DH-HAC-T1A21P-U-IL-A |
| Image Sensor | 2 MP CMOS |
| Max. Resolution | 1920 (H) × 1080 (V) [1080p] |
| Scanning System | Progressive |
| Electronic Shutter Speed | PAL: 1/25 s–1/100,000 s |
| Min. Illumination | 0.02 lux@F2.0 (Color, 30 IRE); 0.002 lux@F2.0 (B/W, 30 IRE); 0 lux (Illuminator on) |
| S/N Ratio | >65 dB |
| Illumination Distance | IR: 25 m (82.02 ft) |
| Illuminator Control | Auto / Manual (2 Warm light LEDs, 2 IR LEDs) |
| Angle Adjustment | Pan: 0°–360° |
| Lens Type / Mount | Fixed-focal / M12 (Max Aperture: F2.0, Fixed Iris) |
| Focal Length & FOV |
2.8 mm: H: 100°, V: 54°, D: 117° 3.6 mm: H: 80°, V: 43°, D: 94° |
| Close Focus Distance | 2.8 mm: 0.5 m (1.64 ft) |
DH-HAC-T1A21P-U-IL-A DORI DISTANCE
| Lens | Detect | Observe | Recognize | Identify |
| 2.8 mm | 44.7 m (146.65 ft) | 17.9 m (58.73 ft) | 8.9 m (29.20 ft) | 4.5 m (14.76 ft) |
| 3.6 mm | 55.0 m (180.45 ft) | 22.0 m (72.18 ft) | 11.0 m (36.09 ft) | 5.5 m (18.04 ft) |
DH-HAC-T1A21P-U-IL-A VIDEO & AUDIO FEATURES
| Feature | Specification |
| Frame Rate | CVI/AHD/TVI: 1080p@25/30 fps |
| Day/Night | Auto (ICR) / Color / B/W |
| Image Enhancement | BLC, HLC, DWDR, 2D NR, Mirror Function |
| White Balance / Gain | Auto, Area White Balance / Auto, Manual |
| Illumination Modes | Smart IR&WL; WL Mode; IR Mode |
| Privacy Masking | Off/On (8 areas, rectangle) |
| Audio Input | One channel built-in Mic |
DH-HAC-T1A21P-U-IL-A PORTS & POWER SPECIFICATIONS
| Feature | Specification |
| Video Output | CVI/TVI/AHD/CVBS video output choices via 1 BNC port |
| Audio Output / Mic | Coaxial Audio via Built-in Mic |
| Power Supply | 12 VDC ± 30% |
| Power Consumption | Max 2.1 W (12 VDC, LED on) |
DH-HAC-T1A21P-U-IL-A ENVIRONMENT & STRUCTURE
| Feature | Specification |
| Operating Temperature | –40 °C to +60 °C (–40 °F to +140 °F) |
| Operating Humidity | <95% (RH), non-condensing |
| Storage Temperature | –40 °C to +60 °C (–40 °F to +140 °F) |
| Storage Humidity | <95% (RH), non-condensing |
| Anti-corrosion Level | Basic Protection |
| Casing Material | Plastic |
| Product Dimensions | Φ85.0 mm × 77.1 mm (Φ3.35″ × 3.04″) |
| Net / Gross Weight | 0.11 kg (0.24 lb) / 0.12 kg (0.26 lb) |
| Installation Options | Wall mount; ceiling mount |
| Certifications | CE-LVD: EN 62368-1; CE-EMC: EN 55032, EN 55035 |
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