Description Firstly, the Sonoff 4CH Pro R3 is a 4-gang Wi-Fi Smart Switch with RF control. It is designed to give you the ability to integrate smart control into your existing home. It has 4 gangs that can be used to control lights as well as other home appliances at the same time in four areas of your home. Additionally, there is a major difference between 4CHR3 and 4CHPROR3, which is 4CHPROR3 is designed with an additional function for RF control. However, the function is purposely adopted to allow you to turn on/off the devices connected with 4CHPROR3 via the RM433 remote controller. With the 4CH R3, you can access self-locking, interlock and inching mode on APP directly. The new improvement is for users to set these 3 working modes on eWeLink APP instead of the hardware itself, therefore making it easier to operate. You can enable self-locking mode to turn on/off 4 connected devices independently, interlock mode to turn on 1 connected device every time and turn off the rest of devices simultaneously as well as inching mode to turn on 1 connected device and then make it turn off automatically after a given time (0.5 – 3600s). SpecificationsVoltage Range: 100-240V AC 50/60HzMax. Load: 10A/2200W/Gang 16A/3500W/TotalWireless Frequency: Wi-Fi 2.4GHzWireless Standard: IEEE802.11 b/g/n 2.4GHz(2400M-2483.5M)Security Mechanism: WPA/WPA2Enclosure Material: PC V0Gang: 4Dimension:145*90*34 (mm)Operating Temperature(recommended): -10ºC-40ºC(14°F-104°F)Operating Humidity: 5%-95%RH, Non-condensing FeaturesRemotely control connected lights or devices via APP3 working modes with self-locking, interlock and inching modeSupport scheduling a timer to make devices automatically start and stop to workCustomize smart scenes to make the device connected with the switch to trigger other devicesShare the control permission of devices to other accounts to control togetherCheck real-time ON/OFF status of devices on your mobile phonePower on state allows users to set the On/Off/Keep status for the connected device before power failure as well as ensure it remains the arranged status after power restorationRF ControlDC Input LoA and Icasa approved.LoA Certificate Number: 171461
