Buying guides
WiFi or 4G: which camera works where you need it
The single question that decides whether a camera will work at all in the place you are putting it — and it has nothing to do with picture quality.
Buying guides
Buying guides
Battery or continuous power: how long do you actually need?
Battery life is the most misread specification in surveillance — mostly because "3 days" on a box rarely means three days of recording.
Buying guides
Choosing a voice recorder: size, battery, and voice activation
Nine recorders in the range, and the differences between them come down to three things.
Buying guides
Night vision: what to check before you buy
The specification people most often assume, and most often get wrong.