LAN, Wi-Fi, and Bluetooth connectivity. LAN connection for high security and reliability. Simultaneous Wi-Fi and LAN usage, as back up when needed. Precise power metering. Shelly Pro 4PM provides precise monitoring of the power consumption. Enhanced safety & security. Improved safety features and TLS 1.2 support, allowing a broad range of secure cloud-connected and local integrations. 4 channels, 16A each. Shelly Pro 4PM has a total device output of 40A. Wide range of voltage support. Use it to control a wide range of devices and appliances. Scripting capabilities. Shelly Pro 4 PM fully supports mjS scripting, allowing you to create further features and functionalities.