Product NEW- LPNHK191011643 Attention! Product opened to verify content. WLAN relay switch Measurement of current with data recording Large range of supported voltages Very fast processor – ESP 32 Increased protection – protection against overvoltage and overheating Enhanced security – MQTT and WSS support and TLS certificate management Relay switch with current measurement Shelly Plus 1 can be used to individually control all household appliances, circuits and office equipment. You can now automate and remotely control any electrical device – even an old fan, heater, pool system, lock or doorbell, garage door and irrigation system – with a single click or a single sentence. SAFE AND EASY TO INSTALL - Shelly Plus 1 is small enough to fit behind any wall switch or outlet, it can be upgraded and installed in less than 10 minutes. Greater security – support for MQTT and WSS, TLS, and support for custom certificates. With the SHELLY SMART Control app, you can remotely control your Shelly devices and receive notifications about all automated events in your home. You can easily configure devices and manage their settings individually or create personalized scenes by connecting Shelly devices to trigger specific actions in home automation.