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Surge Protection for Outdoor Cameras, Gates and Intercoms
Essential Security Supplies
A practical New Zealand installer guide to surge protection for outdoor CCTV cameras, powered gates and intercoms, covering PoE, AC supply protection, earthing, bonding and fibre isolation.
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CCTV Storage Calculator Guide: Retention, Bitrate and Hard-Drive Capacity
Essential Security Supplies
Estimate CCTV retention and hard-drive capacity using measured camera bitrate, recording schedules and usable NVR space, with worked examples for New Zealand installers.
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Villa and Gate Intercom Kits: BPT vs Akuvox vs TVT
Essential Security Supplies
Compare BPT, Akuvox and TVT villa and gate intercom kits for NZ properties, including cabling, video, mobile answering and gate integration.
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Managed vs Unmanaged PoE Switches for Security Networks
Essential Security Supplies
Managed or unmanaged PoE for NZ CCTV, access control and intercoms? Compare VLANs, budgets, recovery and genuine Dahua, Uniview, Ubiquiti, NETGEAR and TP-Link switches.
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