This wall plate adapter allows you to install Sonoff smart panels and wall switches into a standard U.S. electrical box with a clean, professional finish. Designed to fit all Sonoff wall switches and smart panels, including the NSPanel Pro, NSPanel Pro 120, TX Series, M5 Matter Series, and other Sonoff wall-mounted devices. Available for 1-gang, 2-gang, 3-gang, and 4-gang electrical boxes. The 3-gang and 4-gang versions are also available in a Dual Panel configuration for installing two compatible Sonoff smart panels or switches side-by-side. INSTALLATION OVERVIEW 1-Gang InstallationMounts directly to a standard U.S. 1-gang electrical box. 2-Gang InstallationRemove existing switches and reuse the original box screws to attach the adapter plate. Then use the screws included with your Sonoff device to secure it to the adapter. 3-Gang InstallationUse the screws included with your Sonoff device to mount the adapter plate directly to the electrical box through the adapter. Available for either a single smart device or two smart devices using the 3 Gang - Dual Panel option. 4-Gang InstallationUse the screws included with your Sonoff device to mount the adapter plate directly to the electrical box through the adapter. Available for either a single smart device or two smart devices using the 4 Gang - Dual Panel option. Simple, clean installation using standard hardware. COMPATIBILITY Fits all Sonoff wall switches and smart panels Compatible with Sonoff NSPanel Pro and NSPanel Pro 120 Compatible with Sonoff TX Series smart switches Compatible with Sonoff M5 Matter Series smart switches Fits standard U.S. 1-gang, 2-gang, 3-gang, and 4-gang electrical boxes Dual-device configurations available for 3-gang and 4-gang electrical boxes Part of our universal smart home wall plate system If you are combining a smart panel with a standard or Decora light switch, see our Universal 3-Gang Smart Home Wall Plate Adapter for mixed-device layouts. COLOR OPTIONS Black White Select your preferred color and electrical box size/configuration from the options menu. FEATURES Fits all Sonoff wall switches and smart panels Fits standard U.S. 1-gang through 4-gang electrical boxes Dual-device options for 3-gang and 4-gang boxes Clean, flush wall-mount appearance No drywall modification required Ideal for smart home upgrades and retrofits Easy installation using standard wall-switch hardware IMPORTANT NOTES Smart device not included Indoor use only Installation should be performed by a qualified or experienced person I am not affiliated with or sponsored by Sonoff. Product names are used for compatibility reference only.