Dahua 2MP HDCVI 25x Starlight PTZ Camera 100m IR SD49225DB

The 100m IR range of the SD49225DB is a defining specification advantage for this camera: most compact PTZ cameras provide IR illumination to 30-50 metres, while this camera extends to 100 metres, enabling nighttime coverage at the distances where 25x optical zoom is most useful for identification purposes.

A 25x optical zoom PTZ at 2MP resolution can resolve detail at distances of 50-100 metres where a fixed camera would show only a general scene. If the IR illumination only reaches 30 metres, the zoom advantage at greater distances is negated by insufficient illumination at night. The 100m IR range on this camera keeps the monitoring capability fully operational at the distances where the 25x zoom has genuine surveillance value.

Starlight technology provides colour imaging in near-darkness, keeping the PTZ useful in the transition periods around dawn and dusk and in partially lit environments where IR alone would produce greyscale output.

As an HDCVI camera, the SD49225DB connects to a compatible Dahua CVI DVR over standard coaxial cable, with PTZ control transmitted over the same cable without a separate control cable. This makes it a straightforward upgrade from a fixed CVI camera to a full PTZ on an existing coaxial infrastructure.

For CCTV installers specifying long-range analogue PTZ cameras on large sites with existing CVI infrastructure across London and the UK, the SD49225DB is the appropriate specification where 100m IR range and 25x optical zoom are both required.

Key Features

• 2MP HDCVI PTZ with 25x optical zoom for long-range monitoring
• 100m IR illumination: far longer than typical PTZ IR range
• Starlight technology for colour imaging in near-darkness conditions
• Operates over coaxial cable to CVI DVR without IP infrastructure
• PTZ control transmitted over the same coaxial cable as video
• 100m IR range keeps coverage effective at full 25x zoom distances