<b>Notice:</b><br>1.This switch can be used for small water heater which has live and neutral wire both;If your water heater has 2 hot line with 115V for each,this KTNNKG switch can't work;<br>2.The smart switch must work with mesh router or single 2.4GHz broadcast;<br>3.This 30amps relay receiver is 433.92MHz, it can be matched with universal remote transmitter which has the same frequency.So you can add more remotes.<br><br>The smart switch works effortlessly with Amazon Alexa, Google Assistant to give you hands-free voice control over your devices. Pair the switch with these commands to turn on your lights, your appliances, or an entire room on or off with just the power of your voice.<br><br><b>Control Your Home Remotely</b> The smart switch uses your existing home Wi-Fi network to provide wireless control of lamps, heaters, fans and more - with no subscription or hub required. <br><br> <b>Product Specifications:</b><br> Voltage: AC85V-250 V,50 / 60 Hz<br>Load: 250 V / 30 A MAX<br> Standby Power Consumption: <0.5 W<br> Working environment: Indoor<br> Working Temperature: -10℃~45 ℃<br> Humidity: ≤80% RH<br> Support: Wifi 2.4 GHz 802.11 b/g/n, 2G / 3G / 4G<br> Wireless Communication Range: 100 m / 328 ft<br> Material: V0 flame-retardant material <br> Dimension: 95 x 55 x 30 mm<br> Net Weight: 88 g<br><br> <b>How to set working mode:Jog-lock(Momentary)/ Self-locking/ Interlock/Manual</b><br> 1.How to clean code:<br> * Press the Pairing Button 8 times,light flash and off,cleaning code successfully.<br> 2.How to set the working mode:<br> * Jog-lock(Momentary):Press "pairing button" 4 times<br> * Self-locking:Press "pairing button" twice<br> * Interlock:Press "pairing button" triple times, then press A button ,then B button<br> 3.How to set the wifi mode<br> Long press the pairing button ,blue light flash,waiting for app maching.<br><br><b>Package Includes:</b><br> 1x Wifi remote switch<br> 1x High power remote control<br>