Zymax engineers have a wealth of expertise, many "firsts" in the industry, and a pride for innovative product design. Zymax have patented MMOV (Monitored Metal Oxide Varister) technology to continually monitor the actual aging of the MOV&＃039;s. This makes our barriers unique as they can allow for PREVENTATIVE MAINTENANCE. For instance our ZM mains power surge protection range: 1. Alerts the user to incorrect wiring 2. Alerts the user by alarm and LED to when the device needs or is nearing replacement. As well as Mains power (including 3 Phase Protection) we have protection for Power Supplies, Aerial & Co-Ax, Data Protection, Wide-Band, Load Cells, CCTV and Transmitters. Any design requests or require further information (data sheets etc) then please do not hesitate to contact us.