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Not exactly. I ended up buying an 850nm illuminator from Amazon and trying it out. That seemed to work and the system I've just installed for the client, utilising the existing illuminators, works well. My *guess* therefore is that it's 850nm, but worth doing a test to confirm. I think the...

Thanks, Phil. Interesting, I thought they would generally be 850nm with a few exceptions at 940nm for the more covert cameras. I wonder why vendors are not publishing this? For me it's quite important as I don't want to find that the existing illuminators need to be replaced after finding the...

I'm looking to replace some cameras on an existing installation where IR illuminators have already been installed. Can anyone confirm the IR wavelength on Dahua cameras - I can't seem to find that specified anywhere. Thanks.

Hi all, Had an incident with a camera on an outbuilding being vandalised allowing the intruder to break in without being identified. What are your views on the best physical security measures? For example, mount the camera on a pole, use steel conduit for cabling, enclose equipment in a steel...