The Hikvision DS-2CD2566G2-I(S) is a compact 6MP AcuSense EXIR mini dome camera designed for reliable indoor and outdoor surveillance. Equipped with DarkFighter low-light technology and deep learning-powered AcuSense analytics, it delivers clear imaging, efficient event classification, and enhanced security. With vandal-resistant IK08 protection, IP67 weatherproofing, and optional audio/alarm interfaces (-S model), this dome camera is a versatile choice for high-security environments.
Key Features
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6MP High Resolution – 3200 × 1800 imaging ensures sharp and detailed video.
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Powered by DarkFighter – Outstanding low-light performance down to 0.003 Lux.
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AcuSense Technology – Deep learning-based human and vehicle classification for accurate alarms.
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Wide Dynamic Range (WDR) – 120 dB for clear imaging in challenging backlight conditions.
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IR Night Vision – Smart IR illumination up to 30m.
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Built-in Audio – Integrated microphone (all models); audio/alarm I/O on the -S version.
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Compact & Durable – IK08 vandal-resistant dome with IP67 weatherproof rating.
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Efficient Compression – H.265+ technology reduces bandwidth and storage costs.
Downloads

Perfect For:
- Office and retail security
- Schools and campus surveillance
- Parking lots and building entrances
- Warehouses and logistics areas
- Public spaces requiring vandal resistance
Installer Tips
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Lens Choice: 2.8mm for wide coverage, 4mm for more focused views.
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Mounting Height: 2.5–4m for optimal DORI coverage.
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PoE Setup: Simplify cabling with PoE; DC 12V also supported.
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Weatherproofing: Ensure dome is tightly sealed for outdoor installs.
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Alarm/Audio: Use the -S version if audio input/output or alarm I/O is required.
Quick-Read Specs
| Specification |
Detail |
| Resolution |
6MP (3200 × 1800) |
| Sensor |
1/1.8" Progressive Scan CMOS |
| Lens Options |
2.8mm (105° HFOV), 4mm (83° HFOV) |
| DORI (2.8mm) |
Detect: 64m / Observe: 26m / Recognize: 13m / Identify: 6m |
| DORI (4mm) |
Detect: 85m / Observe: 34m / Recognize: 17m / Identify: 9m |
| Night Vision |
IR up to 30m (Smart IR) |
| WDR |
120 dB |
| Audio |
Built-in mic; -S model adds audio I/O |
| Alarm |
-S model: 1 input / 1 output |
| Storage |
microSD card up to 256 GB, NAS, ANR |
| Protection |
IP67 weatherproof, IK08 vandal-proof |
| Power |
12V DC ±25% / PoE (802.3af), max. 7W |
| Dimensions |
Ø110 × 57.4 mm |
| Weight |
375 g |
| Operating Temp |
-30 °C to 60 °C (-22 °F to 140 °F) |
Extra Info
AcuSense Technology
By focusing on human and vehicle classification, AcuSense drastically reduces false alarms triggered by animals, leaves, or moving shadows—making event notifications far more accurate.
Low-Light Excellence
With Powered-by-DarkFighter, the DS-2CD2566G2-I(S) captures vibrant detail even in very low light (0.003 Lux), ensuring security round the clock.
Smart IR Illumination
Automatically adjusts IR intensity up to 30m, preventing overexposure at close range and enhancing detail visibility in dark areas.
Rugged Dome Design
The mini dome housing is compact yet durable, with IK08 vandal resistance against impacts and IP67 protection against dust and water.
Flexible Audio & Alarm Options
All versions include a built-in microphone, while the -S model adds audio input/output and alarm interfaces for integration with sirens, speakers, or sensors.
Q&A
Q1: Does it support audio?
Yes, it includes a built-in microphone. The -S version adds audio input/output.
Q2: Can it be used outdoors?
Yes, with IP67 protection and IK08 vandal resistance, it is suitable for outdoor installations.
Q3: What are the lens options?
Available in 2.8mm (wide coverage) or 4mm (longer range view).
Q4: How far can it see at night?
Up to 30m with Smart IR illumination.
Q5: Does it support PoE?
Yes, it supports PoE (802.3af) and 12V DC power.
Q6: What storage is available?
Supports microSD up to 256 GB, NAS, and Hikvision NVRs with ANR.
Q7: Is it vandal-proof?
Yes, the dome is IK08-rated, protecting against impacts.