4 channels DIN rail relay switch with Wi-Fi, LAN and Bluetooth connection Professional 4 channels relay with Wi-Fi, LAN, and Bluetooth connection, suitable for home and facility automation with remote control and precise power management. DIN rail mountable insde a breaker box. Enhanced safety features and compatible with most used home automation platforms. KEY FEATURES LAN, Wi-Fi, and Bluetooth connection 4 outputs, 16A each. Total device maximum of 40A Precise power metering Overpower and overvoltage protection of the load. DIN rail mountable 1.8-inch color screen with navigation keys Device name: Shelly Pro 4PM V2 NOTES Standard warranty (included in purchase price): 5 Years warranty through manufacturer due to device malfunctions when it is used in user manual described conditions. While this is technically user-installable in many locales, we recommend consulting a licensed electrician to install automation components - in addition to being licensed to work with electrical devices, they are also familiar with local building codes. Manufacturer's note: Each Shelly device emits heat under load. Do not combine two or more Shelly devices stacked on top of each other in a confined space. There must be a minimum distance of 1 cm between them to allow for airflow. Power Power supply AC 110-230V ±10%, 50/60Hz Power supply DC No Special functions Roller Shutter Mode No Device Temperature Protection Yes Overload Protection Yes Power Measurement Yes Features HTTP/HTTPS webhooks Yes Custom scripts(mJs) Yes Channels 4 Channel Maximum load up to 16A per channel with up to 40A for the whole device Operational temperature 0°C to + 40 °C Device power consumption < 4 W Intelligent On/Off Yes Local and remote control Yes Sunrise/Sunset Yes Weekly Schedule Yes UL Listed option No Connectivity Wireless Yes Wi-Fi Protocol 802.11 b/g/n Wi-Fi Radio frequency 2412 - 2484 MHz Wi-Fi Radio signal power 1mW Wi-Fi Range up to 50 m outdoors and up to 30 m indoors (depending on the building materials) Bluetooth Yes Ethernet Yes Dimensions Size 90mm x 52mm x 57 mm LINKS Official Support - https://shelly.cloud/support/ Support Group - https://www.facebook.com/groups/ShellyIoTCommunitySupport API and Communication Documentation - https://shelly-api-docs.shelly.cloud/gen2/