In short: Dahua's TiOC and Active Deterrence cameras add a built-in siren and strobe light that trigger automatically when the camera detects an intrusion — warning someone off in real time, not just recording them. Several models pair this with Dahua's WizColor sensor, which keeps footage in full colour even in low light. We stock TiOC Lite and TiOC Pro cameras from 5MP to 8MP.
Most cameras only record an incident. An active deterrence camera also responds to it: on a qualifying detection (Dahua's SMD/SMD 4.0 smart motion detection, or face detection), the camera triggers its own built-in siren and a bright strobe light, and on TiOC Pro models a speaker for two-way talk. Dahua brands this feature set TiOC; "TiOC Lite" and "TiOC Pro" variants in our range differ mainly in whether a speaker/two-way talk is included, shown on each product page.
What WizColor adds
WizColor is a separate Dahua technology — a larger, more light-sensitive sensor that keeps the image in full colour in low light rather than switching to monochrome infrared. It is frequently paired with TiOC active deterrence on the same camera, so the recorded incident is in colour (useful for identifying clothing or vehicles) as well as being met with a siren and light.
A built-in siren and strobe light (plus speaker on some models) triggering automatically on a qualifying detection, warning off an intruder in real time.
What does TiOC stand for?
Dahua's branding for its active deterrence camera line; Lite and Pro variants differ mainly in whether a speaker/two-way talk is included.
What is WizColor?
A larger sensor that keeps footage in full colour in low light rather than switching to infrared monochrome — often combined with TiOC.
Can the siren and light be triggered manually?
Usually they trigger from the camera's own analytics; some models also allow a manual trigger from the NVR or app — check the product's specification.
