pgraded SMG-8112,Newly added features 1.New App remote control function, wifi connection required. 2.Compatible with Alexa & Google HomeEnabling voice control. 3.Three models Self-locking, Interlocking ,Inching. 4.Two voltages for a wider range of useAC DC 7-32V, AC 85-250V Products advantage 1,APP control, just click on the Tuya or Smart Life APP to open the door anytime, anywhere. 2,Timer,Set a countdown timer to automatically close 1 minute after opening the door 3,Hands-free voice controlCompatible with Alexa and Google Home, voice control of door opening and closing. 4,Share ControlShare control of your home appliances to your family or friends so that they can also control the devices remotely 5,3 Working ModesSelf-locking, inching mode 6Can learn Fixed and Rolling code 433,92Mhz remote controls separately and simultaneously !!! 72 channel receiver provides you with an option to control and use 2 gate automations or alarm systems simultaneously 8,The maximum number of remote controllers stored is 400, which is enough for the entire community to use. 9It's very easy to connect it to your control board. All you need is to connect 4 wires between receiver and control panel. If you will need any technical support - i'm always at your service! 10,The product is a general smart receiver and it can be matched with the majority of the wireless receiver in the market, including fixed code 2262, 2260,2264,5326,M1E,M5E etc, learning code 1527, 2240, 6P20B, 6P20D etc. roling code HCS301,HCS300,HCS200,HCS201,HSC100,HCS1O1 etc and a part of customized remote controller. Three working modes:Inching, Toggle, Latched Inching: Set a time to automatically switch off after one click for 2-3600s Toggle: press the button once to open, press the button again to close Latched: press the button once to open, press another button to close Parameters: Input voltageDC/AC 7V~32V AC85-250V Max.Current:2200W/10A Radio Frequency:433Mhz 433.92MHz Codes: Working with any fixed and rolling code remote control Working temperature: -20~70 Programming: press and hold the learn button on the receiver few seconds. Then hold and press the remote control button to programming. Delete code: Press and hold the delete code about 20 seconds. Checklist before using the device Your smart phone or tablet has connected to a2.4g WiFi with internet. You need to enable Bluetooth of the phone.You have the correct WiFi PWD. You have the correct WiFi PWD. You smart phone or tablet must have access to APPstore,Google play. Your router is MAC-open Checklist before using the device Your smart phone or tablet has connected to a2.4g WiFi with internet. You need to enable Bluetooth of the phone.You have the correct WiFi PWD. You have the correct WiFi PWD. You smart phone or tablet must have access to APPstore,Google play. Your router is MAC-open When connected, reset the device to pairing mode, i.e. the red light flashes rapidly 433mhz Transmitter PROGRAMMING: 1.Learning transmitters codes: Press learn 1 or learn 2 for 2 second, the learn_led light, then, press the button which you choose on the transmitter till the learn_led flash and go out, the transmitters code has been stored. Repeat the above steps for other transmitters. 2.Erasing transmitters codes: Press learn 1 or learn2 and hold on to make the learn_led light till go out, all codes of transmitters which had been stored are erased. Wiring methods for doors