KTNNKG 110V 220V AC 40amps Smart Pump Switch, Water Heater Timer,Wi-Fi+Remote Control

40A Wifi relay switch for power on / off only: max load 4400W for 110V or 8800W for 220V, 70% use recommended for safe(For example , the switch will work perfect if your device is under 3000 watts) (Launch Date: Nov 17, 2019) . KTNNKG WiFi timer switch can work with AC 85V - 250V: People use 110V in USA,So you can connect hot line to the "L" port, and neutral line to the "N" port (no need to touch original ground line) Do not support device with 2 hot lines , make sure one hot line "In"/"out",one neutral line "In"/"out" only.(If your water heater has 2 hots with 115V for each,then can't use this switch) For Wi-Fi control, this 40amps smart switch must work with mesh router (or single 2.4GHz broadcast ).For example , you can connect it to your smart phone hotspot if it works outside , and share the switch to other smart phones.Otherwise it can't be controlled by app. Main Function: APP control("TUYA" or "SMART LIFE") ; remote control(battery not included,it works with 23A12V battery);s