YBJ 21-Piece-Kit WiFi Alarm System for Home Security, DIY 4G Smart Home Security System, Wireless Home Alarm System with APP Control, Motion Detector, Door Window Sensor, Siren,Work with Amazon Alexa

[ Easy to Install ]: Easy To Install panel with wireless sensors that can be integrated in short time with automated fast response alarms. Support up to 100 learing/storage/location for remote control, RFID cards and wireless detector as you need; You can control this gsm alarm system Arm/Disarm/Voice Monitoring /Intercom by cellphone anywhere.
[ Wifi+GSM Dual Network ]: This alarm host only works with 2.4GHz wifi (not work 5G wifi) and 2G/3G/4G sim card. you can use GSM when the wifi is power off. // There is no any monthly fee, subscription fee, installation costs, or contracts required. Free mobile app for iPhone and Android phones, so you can control your alarm system from anywhere with your smartphone.
[ Timing Arm and Disarm Function ]: You can set timing arm and disarm by app or keyboard to avoid repeated operation. Also, a delay time can be set to avoid alarms caused by users leaving the site and passing through the deployed area. // Works with Alexa and Google, you can use voice to control your alarm system and intelligent household devices.
[ Anti-theft Protection ]: When someone triggers the system, it will sound a loud alarm to scare off thieves, and “Tuya” or “Smart life” app will push information to you, the alarm host will make a call or send a message to the preset phone number.
[ Package Includes ]: 1* alarm host; 1* PE-513 siren; 4* PIR motion detector; 8* door/window sensor; 3* RFID card; 3* remote control,1*SOS button.