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Business Details
We have been designing and manufacturing specialist CCTV products since our foundation in 1964. Our team possesses over 40 years of experience in video transmission technology. We pioneered the industry-standard Pulse and Bar signal generator for evaluating video quality. Our BH17 range introduced the first opto-coupled line corrector, revolutionising the market over 30 years ago. We maintain full control over quality by testing 100% of all products before dispatch from our Surrey factory. We serve critical infrastructure clients including London Underground, Channel Tunnel, Rail Networks and HM Prison Service. Our product range covers both unbalanced co-axial and balanced twisted-pair versions for versatile installation.

We offer expert on-site troubleshooting and video signal evaluation to resolve transmission issues swiftly. Our bespoke design service adapts existing solutions to meet unique customer requirements, such as a 1-in-23-out rack for the Home Office. We remain proudly owned by our founder Kerr Boxall, ensuring continuity of technical excellence and client commitment. We provide first-class support for users, distributors and installers, backed by comprehensive technical resources. Our dedication to innovation and reliability has earned us an enviable reputation across the CCTV industry.
Highlights and features
  • We have designed CCTV video products since 1964.
  • Our BH17 opto-coupled line corrector revolutionised the industry.
  • We test 100% of products before factory dispatch.
  • Our equipment serves London Underground and HM Prison Service.
  • We provide on-site troubleshooting and bespoke design services.
Services
Video Distribution Amplifiers
Our video distribution amplifiers split a single CCTV signal into multiple outputs without quality loss, supporting both co-axial and twisted-pair formats. They are designed for installers and integrators managing large-scale surveillance networks such as rail or prison systems. Each unit undergoes 100% factory testing to ensure reliable, noise-free distribution across all connected monitors.
Video Line Correctors
Our video line correctors compensate for signal degradation over long cable runs, restoring amplitude and frequency response for clear CCTV images. They serve installers working on extended infrastructure like tunnels or underground networks where cable lengths exceed standard limits. The BH17 opto-coupled design provides ground-loop isolation, preventing hum interference in critical security environments.
Video Launch Amplifiers
Our video launch amplifiers boost signal strength at the source, enabling reliable transmission over extended distances in CCTV installations. They are ideal for system designers requiring robust performance in large campuses such as airports or railway stations. Each amplifier is 100% tested to guarantee consistent gain and minimal noise across all operating conditions.
Longitudinal Hum Rejection
Our longitudinal hum rejection units eliminate common-mode interference that corrupts video signals in balanced twisted-pair CCTV installations. They protect installers and integrators from image degradation caused by power cables or ground loops in electrically noisy environments. The active cancellation circuitry ensures clean, stable video delivery without signal attenuation or added distortion.
Wiring and Assembly Service
Our wiring and assembly service provides custom rack-mounted panels pre-loaded with L-Series units, reducing on-site installation time for system integrators. Panels accommodate up to three modules powered by a single 12V DC supply, simplifying cable management in equipment cabinets. We deliver fully tested assemblies tailored to project specifications, ensuring immediate deployment.