4 MP Smart Hybrid Light with ColorVu Fixed Turret Network Camera

The 4 MP Smart Hybrid Light with ColorVu Fixed Turret Network Camera (DS-2CD2347G2H-LIU) is a 4 MP camera for buyers who want one unit that watches the scene and, on this -U variant, listens too.

What it does in practice

• 4 MP resolution for the picture.
• 130 dB WDR (wide dynamic range, which balances bright and dark areas in one frame). It is there for scenes with strong back light, such as a doorway with daylight behind it.
• Smart Hybrid Light with ColorVu, the lighting technology, described as long range.
• Human and vehicle classification based on deep learning, so the camera can tell those two subjects from other movement.
• Built-in microphone (the -U in the code) for real-time audio security.
• H.265+ compression, a video format designed to keep file sizes down, which matters when footage is stored for days or weeks.
• IP67, meaning water and dust resistant.

Check before you buy

1. Recorder or system. This is a network (IP) camera, so it needs to connect to an IP system. Check your recorder or software supports H.265+ so you get the benefit of the compression.
2. Storage. Work out how many cameras you will run and how long you want to keep footage, then size the drive to match.
3. Position. It is a fixed turret, so decide where it will point before mounting it.
4. Audio. Decide whether you need sound at that location, as this is the model that has the microphone.