Purchase Tips For the device to connect to the mobile app, it must be paired with a supported gateway, which needs to be purchased separately and can be linked with other compatible smart devices to realize automation scenarios. All of these receivers must have a gateway to work with the Tuya App/Smart Life App/APP. 2/4 Channel Relay (Three Working Modes) Use for 1.Remotely give a pulse signal to turn on/off Lights,Lamps and other home appliance. 2.Remotely give a pulse signal to turn on/off Garage Door,Door Access 3.Remotely give a pulse signal to control DC Motor,AC Motor to Forward and Reverse The switch is a micro/self-locking smart switchsupporting ZigBee It can be used as a router to help transmit signals to ensure a stable connection when using multiple devices in your house. What can I use it for? *Connect a light, remotely control the switch of the light.Connect a light, remotely control the switch of the light, and can also switch on and off regularly 19:00 On 21:00 Off *Open your curtains regularly 7:00 *Change the water for the fish tank regularly *Use mobile phone or voice control Garage door switch *Control your heater remotely *And your coffee machine *Connect a water pump, remote control or timer switch More functions waiting for you to discover. DIY Function APP Remote Control Require Tuya Hub. You can check the working state of the device in Tuya APP anywhere and anytime. RF433mhz Control The device can be controlled by the RF433mhz Remote Controller. Mobile Phone Control Require Tuya Hub ,when you go outside or at home, your smart phone could control the device by 2.4Ghz WIFI or 2G/3G/4G Mobile Network. Voice Control Require Tuya Hub, you could voice control the device by Alexa/Google Assistant. Smart Linkage Cooperate with other products to achieve intelligent linkage. For example, with door magnetic sensing, to realize the light on immediately after opening the door Group Control Unified management of individual devices using gateways Timing function Lying in bed without turning off the lights fell asleep, it does not matter, the wall switch timing function to the point of turning off the lights, from the lights off do not worry about. Two Working Modes 1CH Self-locking, Inching Two Working Modes 2CH 4CH Self-locking, Inching, Interlocking Feacture Two Input Ports You could choose USB 5V port or the screw terminal port to supply power in the input to make the pcb board board work. Dry Contact/Passive Output No matter how many power you supply in the input, the output don't have any voltage (Except that the input and output share the same power supply) If you do not supply power in output port, the connectted home appliance can't work, you also need to supply power in output. Timer The connectted home appliances can be automatically turned on/off according to the time schedule. Each channel can set different time schedule. Parameters: lnput voltage: DC/AC 7-32V Micro USB 5V inputAC 85-250V Micro USB 5V input Max.Current:2200W/10A wireless Standard:3.0 Working temperature: -20~70 3 Control methods: APP, 433MHz Remote, voice control 3 Working Modes:Self-locking, interlock and inching mode Voice Control:Alexa Google Home Compatible APP: Smart Life / Tuya Smart Size: 1ch 69*41*20mm 2ch 116*38*25mm 4ch 81*76*28 Checklist before using the device You need to have a gateway. Try to be close to the gateway when pairing. Remote Control Control your home's curtains, garage doors, motors , anywhere. Lights, water heaterwater dispenser. television. air conditioner etc. Timing Function you can the time to turn on lights and turn on the fans in the office Hands-Free Voice Control Compatible with Alexa & Google Home,the smart switch allows you to control lights on/off with your voice Group Control Set all of your smart switches in a group by Smart Life app. Then one-click to turn/off all of your appliances or lightings by smartphone. Family Sharing Share the control with family member.Enjoy the convenience and happiness together Smart Scene Creating your own scene to trigger ON/OFF home appliances by departure mode, home mode, temperature, humidity, or other environmental conditions. Add device flow to mobile APP 1CH wiring diagram 2CH wiring diagram 4CH wiring diagram Introduction to the remote control This remote control is a 1527 learning code 433mhz and sends without batteries