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.
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.
NVR RAID Explained: RAID 1, RAID 5 and RAID 6 for CCTV Storage
Essential Security Supplies
NVR RAID changes how disks provide capacity and tolerate disk failure. It does not preserve every recording against deletion, recorder damage or a wider incident. NZ CCTV projects should choose the recorder's supported RAID mode alongside retention, workload, fault response and an independent evidence preservation process.
CCTV Cybersecurity Checklist: How to Harden Cameras, NVRs and Security Networks
Essential Security Supplies
A CCTV cybersecurity checklist should cover the entire service: cameras, recorders, operator workstations, remote access and maintenance. Changing a default password is necessary where applicable, but it does not resolve an unsupported device, exposed recorder or uncontrolled administrator account. NZ installers need a documented baseline and a process for keeping it current.