4-channel mode switch Use for 1.Remotely give a pulse signal to turn on/off Lights,Lamps.PC 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 Overview RF433 remote control does not contain batteries Battery type; 27A 12V, The WIFI module can be controlled with the fixed code EV1527 RF433 remote control, but not with the rolling code remote control. Note The relays is passive output(dry contact), No matter how many power you supply in the input, the output don't have any voltage, you also need to supply power in output. The power supply in the input just can make PCB board work. If you do not supply power in output, the connectted device can't work. 3 Working Modes 1.Self-locking : each channel could be switched on/off seperately.You can turn on/turn off all channel at the same time. 2.Interlocking mode : Switch on any channel , other channels will be switched off automatically . 3.Inching mode : Switch on one channel,the channel will be automatically closed after 0.5seconds .Other channel is same as the channel. If you need to change the mode,you need to press the mode button How to Change the Inching Time If you need to change the inching time.you need to press the mode button to enter into self-locking mode or interlocking mode,so you can change the inching time on the APP and the inching time only available in the self-locking or interlocking mode) The time range is 0.5-3600 seconds. Features: Two Input Ports You could choose USB 5V port or the DC/AC7-32V screw terminal port to supply power in the input to make the pcb board board work. Dry Contact/Passive Output No matter the power source you supply in the input, the output don't have any voltage If you do not supply power source in output port, the connectted home appliance can't work, you also need to supply power source 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. Different Ways to Control the WIFI Module APP Remote Control You can control the connectted home appliance in Tuya or smart life APP anywhere and anytime.Such as light, electric kettle, electric rice cooker, electric curtain, etc. RF433 Control The WIFI Module support RF433 Frequency,and you can control the WIFI module by RF433mhz remote controller. Mobile Phone Control When you go outside or at home,you could control the device in your smart phone by 2G/3G/4G Mobile Network or WIFI. (Note:The router need to online.The WIFI module need to keep a close distance with the router and the wifi module need to online in Tuya Smart Life APP) Voice Control Compatible with Alexa and Google Assistant, you can use the voice control to turn on/off the connectted home appliances . Share Control One device can control by Multiple phones,you can share the wifi module with your family. Group Control one phone can control Multiple smart device.You can add the wifi module and other smart device in a group,and then you can turn on/off all smart device at the same time. Description: Input 1: Micro USB 5V Port Input 2:(screw terminal port): DC/AC 7-32V NC NO COM Output:Passive Output(Dry contact) Working frequency: 50-60Hz RF433 Frequency Working temperature: -20-70 Wifi standards/ protocol :IEEE 802.11b/g/n, WIFI 2.4Ghz Max load : 16A/3500W/4 Channel Max current:`10A/2000W/Channel Size: 75*73*20 mm