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 Category | Optical Reach / Sensor Type | Resolution & Frame Rate | Analytical Intelligence | Primary Deployment Scenario |
|---|---|---|---|---|
| Dahua WizMind PTZ (SD6AL) | 45x Optical Zoom (Up to 500m Laser IR) | 4MP / 4K @ 60fps | Auto-Tracking 3.0, PFA Focus | Large infrastructure perimeters, rail yards |
| HOLOWITS HWT-M6741 Series | 40x Optical Zoom + Wide Dual-Lens | 4MP Super Starlight+ | 2T Dedicated AI NPU | Dual-view situational tracking, border checkpoints |
| Dahua Thermal Hybrid Bi-Spectrum | Uncooled VOx Thermal + 4MP Optical | Radiometric Thermal Core | Early Fire Detection, Heat Profiling | Solar inverter farms, lithium battery energy storage |
| UniFi Protect AI PTZ | 22x Optical Zoom (IP66 Weatherproof) | 4K UHD @ 30fps | Native UniFi Smart Analytics | Commercial 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 Factor | Factory-Sealed New Security Hardware (NIB) | Certified Refurbished Security Equipment |
|---|---|---|
| Physical Condition | Factory original carton with intact manufacturer security seals | Pristine cosmetic finish, industrial ESD anti-static packaging |
| Availability & Lead Time | Immediate stock dispatch, avoiding OEM multi-month backorders | Same-day or 24-hour dispatch directly from warehouse stock |
| Capital Expenditure | Substantial enterprise-tier commercial discounts | 40% to 65% savings off standard OEM list price |
| Recommended Deployments | Primary safe-city nodes, high-security data centers | Secondary branch sites, staging labs, spare cold-standby units |
| Warranty Guarantee | Backed by comprehensive hardware replacement guarantee | 1-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?
Can Green Code Technologies ship surveillance hardware internationally?
How do I request a formal commercial quotation for an enterprise surveillance Bill of Materials?
What is the primary operational difference between basic motion detection and AI video analytics?
What is a Software-Defined Camera (SDC) from HOLOWITS?
What is Dahua ePoE technology, and what are its deployment benefits?
Are Dahua, HOLOWITS, and UniFi cameras compatible with third-party Video Management Systems (VMS)?
What is the difference between factory-sealed (NIB) and certified refurbished surveillance equipment?
What warranty coverage do you provide on security and surveillance hardware?
Do enterprise NVRs include surveillance-grade hard drives?
Can your staging team pre-configure camera IP addresses and firmware before shipping?
What power specifications are required for high-power AI PTZ cameras?
How do thermal radiometric cameras detect industrial hazards before fires ignite?
What currencies and payment methods do you accept for international orders?
How are import duties, export licenses, and customs handled for overseas shipments?
What is the process for returning a defective item under warranty?
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.
































