Security & Surveillance

Security & Surveillance. Buy surveillance equipment from Green Code Technologies, a UK IT hardware supplier. This section lists 2333 part numbers.
Choosing the right part. Choose on resolution and lens or focal range, and on the recorder the camera has to work with. Check the infrared range for night use and the ingress rating for anything mounted outside. Tell us what you are building and we will quote by the next working day. We supply new where available and tested stock otherwise, with warranty.

Global Distributor of Enterprise Physical Security, AI Video Surveillance & Access Infrastructure

Intelligent Physical Security Engineered for Modern Enterprise Assets

Modern industrial distribution centers, international transportation terminals, utility substations, corporate office towers, and safe-city public infrastructures require physical security solutions that extend far beyond passive, unmonitored video recording. Conventional analog or basic IP camera networks generate excessive operational noise, triggering continuous false alarms from environmental shifts, moving foliage, and changing light conditions while lacking real-time analytical capabilities. Modern enterprise risk management demands proactive physical security—converging high-resolution optical sensors, real-time edge computer vision, hardware-isolated video distribution, and automated biometric access control. Green Code Technologies Limited functions as an independent international enterprise video surveillance distributor and stocking supplier. We provide authentic factory-sealed new-in-box (NIB) and thoroughly audited pre-owned physical security hardware to systems integrators, security operations centers (SOCs), facilities management groups, and corporate procurement teams worldwide.

Headquartered in London and dispatching across North America, Europe, the Middle East, Africa, and APAC, we bypass conventional manufacturer backlogs and regional supply constraints. Whether your deployment roadmap requires high-density multi-algorithm Software-Defined Cameras (SDC), high-capacity 64-channel to 128-channel AI-powered NVR arrays with hardware RAID, autonomous 40x optical zoom auto-tracking PTZ domes, or radiometric thermal cameras for perimeter defense, our ready-to-ship inventory delivers verified hardware supported by worldwide international shipping and flexible commercial payment terms.

Global Express Air Freight and Compliant Cross-Border Logistics

Executing international cross-border shipments of heavy-duty surveillance enclosures, enterprise NVR chassis, and high-precision optical lenses requires strict compliance with international trade frameworks, automated EORI export declarations, and validated dual-use customs paperwork. Every security and surveillance consignment dispatched from our logistics hubs includes complete commercial invoices, packing lists, and certified serial tracking manifests. Partnered with Tier-1 international express couriers—including DHL Express, FedEx Priority, and global air freight cargo forwarders—we ensure your physical security infrastructure arrives safely, securely, and on schedule.

Multi-Currency Invoicing and Institutional B2B Settlement

To eliminate cross-border foreign exchange friction for multinational corporate clients and international systems integrators, we provide formal commercial invoicing and purchase order settlement in US Dollars (USD), Euros (EUR), and British Pounds (GBP). Our commercial sales desk accommodates structured wire transfers (SWIFT/SEPA), institutional purchase orders, and multi-vendor project consolidations alongside enterprise compute and network fabrics from Dell Technologies, HPE, and Cisco Systems.

Architectural Hierarchy: The Four Pillars of Enterprise Physical Security

Enterprise physical security systems must operate with deterministic reliability, non-blocking video ingestion, and strict cybersecurity segregation across four integrated tiers:

Integrated Enterprise Physical Security Topology

  • Edge Optical & Smart Sensing: High-definition IP cameras, Software-Defined Vision (SDC), and Starlight+ low-light optics
  • Autonomous Threat Interception: High-speed AI auto-tracking PTZs, dual-spectrum thermal sensors, and perimeter tripwires
  • Recording, Computing & Analytics: Enterprise NVR arrays (RAID 5/6/10), AI edge video servers (IVS), and SAN archiving
  • Identity & Physical Perimeter Access: IP intercoms, biometric readers, access control modules, and PoE++ power delivery

Enterprise IP Surveillance: Optical Precision & Edge AI Computer Vision

The optical edge layer serves as the primary detection mechanism for unauthorized activity, asset movement, and perimeter breaches. When commercial integrators look to buy commercial security cameras online or secure wholesale CCTV equipment suppliers, Green Code Technologies maintains comprehensive stock across major platforms within our firewalls & security catalog.

Edge Camera Processing Workflow

  • Optical Sensor (4K / 8MP CMOS): feeds into the Onboard Neural Processing Unit (NPU) for real-time deep learning inference
  • Structured Metadata Generation: filters out 98% of environmental false alarms
  • Target Classification: distinguishes human vs. vehicle
  • Attribute Extraction: color, make, license plate, face

Dahua WizMind & Pro Series: AI-Powered Optical Precision

Dahua Technology delivers optical hardware integrated with dedicated deep-learning algorithms:

  • WizMind S & X Series: Cameras featuring AI Image Signal Processing (AI-ISP) that suppresses motion blur and noise in extreme low-light environments (down to 0.0005 Lux) without relying on blinding white floodlights.
  • Metadata Extraction & Perimeter Tripwires: Real-time extraction of target attributes (clothing color, facial features, vehicle model, and license plate characters) combined with perimeter tripwire defense that filters out non-human/non-vehicular movement.
  • Patented ePoE Technology: Transmits high-definition video, audio, and power over standard Cat5e/Cat6 copper cabling up to 800 meters at 10 Mbps or 300 meters at 100 Mbps, eliminating the standard 100-meter Ethernet barrier across expansive logistics yards. Explore complete options in our Dahua Technology hub.

HOLOWITS Software-Defined Cameras (SDC): Open Algorithm Architecture

HOLOWITS cameras separate the physical optical hardware from static factory firmware:

  • Over-the-Air (OTA) Algorithm Swapping: Powered by dedicated onboard NPUs (delivering between 1.0T and 32 TOPS of neural compute), operators can download, update, and swap algorithms dynamically over IP without replacing the physical camera.
  • Multi-Algorithm Concurrency: A single camera can simultaneously analyze vehicular license plates, assess personal protective equipment (PPE/hardhat) compliance, and run facial recognition on a single video feed. Discover full specifications in the HOLOWITS brand showcase.

Ubiquiti UniFi Protect: Zero-License Commercial Security

For corporate offices, retail branches, and commercial real estate seeking high-definition surveillance without recurring software licensing fees:

  • 4K AI Surveillance: UniFi Protect cameras—including the AI Pro, AI Theta, and G5 Pro—provide 4K optical clarity, integrated two-way audio, and edge smart detection for people and vehicles.
  • Unified Single-Pane Management: Seamlessly managed via local UniFi OS Consoles without per-camera monthly cloud subscription fees. Review configurations in our Ubiquiti brand hub.

Autonomous AI PTZ Auto-Tracking & Dual-Spectrum Thermal Systems

Stationary cameras are constrained by fixed fields of view. When monitoring wide areas—such as logistics container depots, airport aprons, utility stations, and border perimeters—autonomous high-speed Pan-Tilt-Zoom (PTZ) domes and thermal imaging systems deliver proactive surveillance.

Camera System CategoryOptical Reach / Sensor TypeResolution & Frame RateAnalytical IntelligencePrimary Deployment Scenario
Dahua WizMind PTZ (SD6AL)45x Optical Zoom (Up to 500m Laser IR)4MP / 4K @ 60fpsAuto-Tracking 3.0, PFA FocusLarge infrastructure perimeters, rail yards
HOLOWITS HWT-M6741 Series40x Optical Zoom + Wide Dual-Lens4MP Super Starlight+2T Dedicated AI NPUDual-view situational tracking, border checkpoints
Dahua Thermal Hybrid Bi-SpectrumUncooled VOx Thermal + 4MP OpticalRadiometric Thermal CoreEarly Fire Detection, Heat ProfilingSolar inverter farms, lithium battery energy storage
UniFi Protect AI PTZ22x Optical Zoom (IP66 Weatherproof)4K UHD @ 30fpsNative UniFi Smart AnalyticsCommercial corporate plazas, multi-tenant parking

Auto-Tracking 3.0 and Dual-Lens Optical Fusion

Advanced AI PTZ cameras do not simply swing indiscriminately toward movement. Deep-learning algorithms lock onto a human intruder or vehicle breaching a boundary. The motorized pan/tilt mechanism tracks the moving subject smoothly across the property while continuously auto-focusing and adjusting zoom to capture high-resolution forensic imagery. Dual-lens models pair a wide-angle overview sensor with a telephoto PTZ lens, ensuring situational context is never lost while tracking close-up targets.

Industrial Radiometric Thermal Scanning

Standard optical cameras cannot penetrate heavy fog, blowing smoke, or complete zero-lux darkness. Dual-spectrum thermal cameras detect infrared energy emitted as heat:

  • Continuous Temperature Threshold Monitoring: Scans surface temperatures across electrical switchgear, solar panels, and battery racks, triggering alerts before physical flames develop.
  • Long-Distance Perimeter Detection: Accurately detects human and vehicle heat signatures across distances exceeding 3 kilometers, providing early warning across expansive, unlit perimeters.

Enterprise Video Storage, AI NVRs & Backend Computing (IVS)

Recording hundreds of 4K video streams while executing continuous AI metadata parsing demands robust internal backplanes, hardware RAID controllers, and high-bandwidth network interfaces. Green Code Technologies provides standalone hardware and drive bundle options on any Dahua WizMind NVR supplier or enterprise network video recorders inquiry:

Video Ingestion and Analytics Architecture

  • Camera Streams (4K / 8MP Video): feed into the PoE+ Switch Fabric / Dedicated Video VLAN via direct stream ingestion
  • Enterprise NVR / IVS Server: splits into a Hardware RAID Controller and a Dedicated AI Neural Engine
  • Hardware RAID Controller: RAID 5/6/10 arrays, hot-swap SAS/SATA drive bays, redundant N+1 power supplies
  • Dedicated AI Neural Engine: backend facial recognition matching, automated license plate indexing, instant metadata attribute queries
  • Dahua WizMind NVR Series (NVR5000-EI & NVR6000-XI): High-density recorders (16 to 128 channels) equipped with hardware RAID 0, 1, 5, 6, and 10 arrays, hot-swappable drive bays, and dual redundant power supplies. For systems using legacy non-AI cameras, WizMind NVRs perform backend analytics, applying facial recognition and vehicle metadata indexing at the recorder level.
  • HOLOWITS HWT-IVS1800 Intelligent Video Platforms: Enterprise video computing appliances delivering up to 32 TOPS of neural compute. Handles 64 channels of 4K video ingestion and up to 16 channels of simultaneous deep video behavioral analysis on a single chassis.
  • UniFi Network Video Recorders (UNVR & UNVR-Pro): Scalable 1U (4-bay) and 2U (7-bay) rackmount recording appliances providing automated RAID 5/10 storage redundancy, 10G SFP+ optical uplinks, and license-free local video storage.
  • Data Center Archival Integration: For multi-petabyte long-term regulatory video retention, we supply enterprise rack servers and SAN storage arrays from Dell Technologies and HPE within our enterprise servers & compute department.

Physical Access Control & Perimeter Security Infrastructure

A comprehensive physical security architecture requires unifying video surveillance with edge physical access control:

Converged Physical Security and Access Control Matrix

  • Smart IP Video Intercom, Biometric / NFC Readers, and Motorized Gate Barriers: feed into the Central Door Controller
  • Central Door Controller: routes through the Encrypted Access VLAN to the Security Operations Center
  • Biometric & RFID Edge Terminals: High-speed facial recognition access terminals, contactless RFID/NFC smartcard readers, and multi-factor biometric keypads engineered for turnstiles and high-security facility portals.
  • Enterprise IP Video Intercoms: Weatherproof IP65/IK08 rated outdoor video intercom stations featuring wide-angle optical cameras, two-way noise-canceling audio, and remote mobile door release capabilities.
  • Surveillance Storage Drives: We stock authentic enterprise surveillance hard drives (Western Digital Purple Pro and Seagate SkyHawk AI from 4TB to 22TB) engineered with enhanced firmware (AllFrame / ImagePerfect) to prevent frame drops during non-stop 24/7/365 multi-stream write workloads.

Enterprise Surveillance Network Architecture: Isolation & Cybersecurity Hardening

Deploying hundreds of IP cameras and NVR appliances creates massive multicast network traffic and introduces physical cybersecurity exposure if edge ports are left unsecured. At Green Code Technologies, we recommend treating the physical surveillance network as a distinct, hardened security enclave:

Hardened Enterprise Physical Security Network Topology

  • Dahua / HOLOWITS / UniFi Cameras: connect to the 802.3bt PoE++ Access Switch Fabric
  • Dedicated 802.1Q Video VLAN: feeds the Campus Distribution & Core Backbone
  • Deep Packet Inspection & Port Hardening: routes through the Fortinet FortiGate / Cisco Secure Firewall
  • Enterprise NVR / IVS Arrays and SOC Video Management Clients: sit behind the firewall boundary

High-Density PoE+ and PoE++ Switching

Motorized PTZ cameras, integrated lens heaters, and multi-sensor panoramic domes demand substantial power:

  • 802.3at PoE+ (Up to 30W): Standard baseline for indoor and outdoor fixed AI bullet and dome cameras.
  • 802.3bt Class 6 & Class 8 PoE++ (60W to 90W): Required for high-power long-range PTZ cameras, laser IR illuminators, and thermal hybrid sensors. We stock high-capacity enterprise switches from Cisco Systems, HPE Aruba Networking, and NETGEAR to deliver stable power budgets across all camera ports.

Video VLAN Isolation and Port Hardening

Physical security cameras are installed in public, accessible external locations, making them potential targets for physical cyber tampering. To isolate camera links from core corporate data assets, we supply enterprise firewalls from Fortinet and Cisco Systems within our firewalls & security department, enforcing strict 802.1X MAC-level port authentication and isolating video traffic within encrypted VLAN segments.

Hardware Sourcing Options: Factory-Sealed New vs. Certified Refurbished Hardware

Balancing enterprise physical security budgets against rapid deployment timelines is a primary challenge for commercial operations heads and security directors. Green Code Technologies provides procurement flexibility by maintaining substantial stock across both brand-new, factory-sealed equipment and thoroughly tested refurbished security hardware wholesale, accessible directly within our refurbished network hardware department.

Procurement FactorFactory-Sealed New Security Hardware (NIB)Certified Refurbished Security Equipment
Physical ConditionFactory original carton with intact manufacturer security sealsPristine cosmetic finish, industrial ESD anti-static packaging
Availability & Lead TimeImmediate stock dispatch, avoiding OEM multi-month backordersSame-day or 24-hour dispatch directly from warehouse stock
Capital ExpenditureSubstantial enterprise-tier commercial discounts40% to 65% savings off standard OEM list price
Recommended DeploymentsPrimary safe-city nodes, high-security data centersSecondary branch sites, staging labs, spare cold-standby units
Warranty GuaranteeBacked by comprehensive hardware replacement guarantee1-Year to 3-Year advance hardware replacement (AHR)

Rigorous 48-Point Diagnostic and Staging Process

Every pre-owned camera and NVR chassis entering our logistics depot undergoes comprehensive evaluation:

  • Optical Sensor & Mechanical Verification: Precision optical alignment, verification of motorized varifocal zoom mechanisms, dead pixel checks, and IR/white-light illuminator stress testing under zero-lux conditions.
  • NPU & AI Processing Validation: Benchmarking onboard neural processing units under sustained load to confirm target extraction accuracy and processing speed.
  • ePoE & Ethernet Stress Testing: Data-plane throughput validation across all copper RJ-45 interfaces under sustained power draw to confirm internal PoE voltage regulation.
  • Storage Controller Diagnostics: Hardware RAID stress testing across all drive channels, hot-swap backplane integrity checks, and cooling fan RPM validation.
  • Firmware Sanitization & Normalization: Complete flash memory zeroization, clearing of previous system passwords, IP assignments, and cloud account links, followed by restoration of clean, factory-default firmware.

Supply Continuity for Legacy, Discontinued, and Mature Security Lines

While modernization initiatives prioritize WizMind and Software-Defined Cameras, corporate facilities frequently depend on established, mature surveillance deployments. When unexpected field failures occur, re-architecting an entire optical array during an operational shift is neither practical nor economical.

Green Code Technologies maintains an active secondary-market sourcing network for mature, discontinued, and legacy commercial physical security systems lines, including:

  • Legacy Dahua Eco-Savvy & Pro Series Cameras: High-demand legacy workhorse models across bullet, dome, and turret configurations.
  • Legacy Embedded NVRs: Proven recording platforms including Dahua NVR4000-4KS2 and NVR5000-4KS2 series.
  • Surveillance System Boards & Replacement Power Supplies: Hot-swappable internal AC power modules, replacement encoder boards, and PTZ slip-ring assemblies.

Corporate Governance, Export Trade Compliance, and Quality Assurance

Green Code Technologies Limited maintains rigorous quality control procedures and international trade compliance standards across every global transaction. Incorporated in England and Wales, our commercial export operations, trade verification protocols, and supply chains operate under the legal frameworks of the United Kingdom. Corporate administration, compliance directives, and operational management are led by company officers, including UK director Imran Nayab Hassan Khan, ensuring all dual-use electronics classifications, customs manifests, and commercial transactions adhere fully to UK Companies House regulations and international cross-border trade standards.

Frequently Asked Questions (FAQ)

What categories of security and surveillance hardware does Green Code Technologies supply?
We supply the full spectrum of enterprise physical security and smart vision hardware, including Dahua WizMind and Pro series IP cameras, HOLOWITS Software-Defined Cameras (SDC), Ubiquiti UniFi Protect cameras, high-speed AI auto-tracking PTZ domes, dual-spectrum thermal cameras, enterprise NVRs, intelligent video servers (IVS), access control terminals, enterprise surveillance hard drives, and mounting accessories.
Can Green Code Technologies ship surveillance hardware internationally?
Yes. We operate as a global enterprise hardware distributor. We arrange expedited international courier delivery (via DHL Express and FedEx Priority) as well as heavy palletized air freight cargo shipments to corporate clients across North America, Europe, the Middle East, Africa, and the Asia-Pacific region.
How do I request a formal commercial quotation for an enterprise surveillance Bill of Materials?
You can request an expedited quotation by emailing your Bill of Materials (BOM) to our corporate desk at sales@greencodeuk.com, contacting our sales team via WhatsApp at +44 7902 000786, or submitting an inquiry via the “Request a Quote” buttons on any product listing. Please specify model part numbers, quantities, condition preferences, and target delivery destination.
What is the primary operational difference between basic motion detection and AI video analytics?
Basic motion detection operates by measuring simple pixel luminance changes, which routinely causes false alarms from swaying trees, headlights, shadows, and weather. AI video analytics utilizes deep-learning convolutional neural networks (CNNs) running on dedicated NPUs to identify and classify targets (distinguishing between humans, vehicles, and non-threatening environmental objects), eliminating up to 98% of false alerts.
What is a Software-Defined Camera (SDC) from HOLOWITS?
An SDC is an intelligent camera featuring an open operating system decoupled from static hardware functions. Powered by onboard AI processors (1.0T to 32 TOPS), it allows operators to deploy, update, and swap computer vision algorithms over the network throughout the lifespan of the hardware without replacing the physical camera.
What is Dahua ePoE technology, and what are its deployment benefits?
Dahua ePoE (enhanced Power over Ethernet) enables point-to-point power and data transmission up to 800 meters over standard twisted-pair Ethernet cables (Cat5e/Cat6) without requiring intermediate repeaters or localized power supplies. This dramatically reduces infrastructure cabling costs across large enterprise campuses, parking facilities, and industrial perimeters.
Are Dahua, HOLOWITS, and UniFi cameras compatible with third-party Video Management Systems (VMS)?
Yes. Dahua and HOLOWITS enterprise cameras adhere to global industry standards, natively supporting ONVIF (Profile S, Profile G, Profile T, and Profile M) as well as standard RTSP streaming protocols. This ensures smooth integration into enterprise VMS platforms like Milestone XProtect, Genetec Security Center, and Network Optix. UniFi Protect cameras stream via RTSP into third-party recording systems when configured in standalone mode.
What is the difference between factory-sealed (NIB) and certified refurbished surveillance equipment?
Factory-sealed New-in-Box (NIB) hardware is brand-new, unopened, and ships in original manufacturer packaging with factory tamper-evident security tape intact. Certified refurbished equipment consists of authentic, pre-owned hardware that has been thoroughly tested, restored to factory defaults, and repackaged in heavy-duty ESD packaging, delivering 40% to 65% cost savings.
What warranty coverage do you provide on security and surveillance hardware?
All hardware shipped by Green Code Technologies is covered by our comprehensive B2B warranty. Depending on the equipment condition and negotiated contract terms, coverage ranges from a 90-day parts warranty for specific legacy components up to 1-year or 3-year advance hardware replacement warranties on complete enterprise cameras and NVR arrays.
Do enterprise NVRs include surveillance-grade hard drives?
Base NVR chassis are typically supplied with empty drive bays to allow flexible capacity planning. However, our engineering team regularly supplies pre-populated, tested NVR bundles configured with Western Digital Purple Pro or Seagate SkyHawk AI enterprise hard drives, pre-configured in your designated hardware RAID arrays (RAID 5, RAID 6, or RAID 10).
Can your staging team pre-configure camera IP addresses and firmware before shipping?
Yes. Upon request, our staging engineers can update hardware firmware to your designated stable baseline release, assign static IP addressing schemes, set customized subnets and gateway routes, and pre-configure standard camera stream profiles prior to international dispatch.
What power specifications are required for high-power AI PTZ cameras?
High-power AI PTZ cameras equipped with long-range laser infrared illuminators and internal heaters require 802.3bt Class 6 (60W) or Class 8 (90W) PoE++ power delivery. We supply enterprise PoE++ switches and certified high-wattage midspan injectors to meet these requirements.
How do thermal radiometric cameras detect industrial hazards before fires ignite?
Thermal radiometric cameras measure absolute surface temperatures across designated regions of interest. By analyzing emitted infrared radiation rather than visible smoke or flame, the camera triggers alarms when localized heat thresholds are breached, enabling intervention before equipment ignites.
What currencies and payment methods do you accept for international orders?
To streamline cross-border transactions, we accept international wire transfers (SWIFT/SEPA) in US Dollars (USD), Euros (EUR), and British Pounds (GBP). Approved corporate clients, educational institutions, and government facilities may also qualify for structured commercial terms and purchase order processing.
How are import duties, export licenses, and customs handled for overseas shipments?
Shipments are typically processed under Incoterms DAP (Delivered at Place) or EXW (Ex Works). We provide all required commercial documentation, including verified commodity HS codes, export declarations, and itemized packing slips, ensuring that your local customs broker can process clearance efficiently.
What is the process for returning a defective item under warranty?
If your technical team identifies a verified hardware failure during the warranty window, contact our technical support team with the device serial number and diagnostic error logs. Following verification, our RMA team issues an authorization and dispatches an advance hardware replacement to minimize security coverage downtime.

Request an Immediate B2B Quotation for Security & Surveillance Systems

Equip your enterprise physical security infrastructure with genuine, high-performance surveillance and access control hardware without enduring distribution delays. Contact our dedicated commercial hardware specialists today for live inventory checks, project bill-of-materials pricing, and international freight estimates:

  • Commercial Sales Inquiries: sales@greencodeuk.com
  • Direct Corporate Desk & WhatsApp: +44 7902 000786
  • Corporate Office & Logistics: Green Code Technologies Limited, 4th Floor, Office 205, 205 Regent Street, London, England, W1B 4HB, United Kingdom
  • Global Logistics Dispatch: Rapid express air freight and courier delivery across the UK, Europe, North America, the Middle East, Africa, and APAC.