# EnerVIZOR > EnerVIZOR develops high-precision powerline communication (PLC) testers and feeder monitoring systems for narrowband and broadband analysis on smart grids. EnerVIZOR designs and manufactures PLC test equipment used by DSOs, utilities, meter manufacturers, and integrators to validate and troubleshoot CENELEC S-FSK, G3-PLC, PRIME and broadband PLC communication on low- and medium-voltage networks. Product families include the PLT series (handheld and portable PLC testers) and the FMS series (Feeder Monitoring Systems). Site is available in English, German and French. ## Pages - [Home](/en/): Company overview, key products, and applications. - [Products](/en/products): Full product catalog (PLC testers and FMS). - [PLC Testers](/en/products/plc): Narrowband and broadband PLC test instruments. - [Feeder Monitoring Systems](/en/products/fms): FMS-3, FMS-4 and FMS Compact for permanent grid monitoring. - [Applications](/en/applications): PLC diagnostics use cases for smart grid operators. - [Use Cases](/en/use-cases): Customer deployments with DSOs and utilities. - [News](/en/news): Product releases, certifications, and event coverage. - [Contact](/en/contact): Sales and technical inquiries. ## Products - [PLT-200](/en/products/plc/plt-200): Portable narrowband PLC tester. - [PLT-200/3](/en/products/plc/plt-200-3): Three-phase narrowband PLC tester. - [PLT-200 C2](/en/products/plc/plt-200-c2): Narrowband PLC tester with current monitoring. - [PLT-M1501-BB](/en/products/plc/plt-m1501-bb): Broadband PLC tester module. - [PLT-Pulsar](/en/products/plc/plt-pulsar): Latest-generation PLC analyzer. - [FMS-3](/en/products/fms/fms-3): Three-phase Feeder Monitoring System. - [FMS-4](/en/products/fms/fms-4): Four-channel Feeder Monitoring System. - [FMS Compact](/en/products/fms/fms-compact): Compact Feeder Monitoring System. ## Optional - [German site](/de/): Deutsche Version. - [French site](/fr/): Version française. - [Privacy Policy](/en/privacy-policy) - [Terms and Conditions](/en/terms-and-conditions)