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PTZ vs Fixed Security Cameras: When Should You Specify Each?
Essential Security Supplies
Compare PTZ and fixed security cameras for NZ commercial CCTV projects, with practical specification guidance using FERN360, UniView, TVT and Dahua.
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MicroSD vs NVR Recording: When Edge Storage Makes Sense for CCTV
Essential Security Supplies
Compare microSD and NVR recording for NZ CCTV projects, with FERN360, TVT, Uniview and Dahua examples, retention calculations and a practical outage test.
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ONVIF Explained: Mixing Cameras and NVRs Without Compatibility Problems
Essential Security Supplies
Learn how ONVIF works with FERN360, Dahua, TVT and UniView cameras and NVRs, including recording, analytics and mixed-brand compatibility considerations for New Zealand installers.
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Thermal vs Optical CCTV Cameras: Where Thermal Surveillance Makes Sense
Essential Security Supplies
Thermal and optical CCTV answer different questions. Thermal imaging can help detect a target through its infrared radiation, while an optical image provides visible scene detail such as clothing and faces. For NZ perimeter projects, the useful choice often combines detection with a separate visual verification path.
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