Wireless Home Burglar Alarm Kit -- including host, infrared, SOS, door sensors, buttons, push buttons, buzzers, etc.; 4.3 inch color IPS display, capacitive touch screen full operation, real time The main interface status bar, data and clock are displayed, and the host status is very clear. Supports multilingual menu, voice operation and SMS alert. Diy Your Home Security System to Enjoy Intelligent Life -- Multiple combination to pairing with additional PGST accessories,such as door sensor/motion detector/SOS button/remote control/doorbell/outdoor siren.etc. easily extend your security system to fit your home layout. Support multi-channel alarm mode ,you can edit the host system manually according to your different needs. ( If setting up the system is difficult for you, please refer to the user manual or operation video.) No Monthly Fees -- There are absolutely no monthly fees, installation costs, or contracts required. Buy your equipment upfront and self-monitor! Everything you need comes in a box and works in any small business, house, condo or rental apartment. If you want to avoid the tedious process of running cables on your property or have tenant contract restrictions or want to avoid spending money on a professional installation, this system is for you! 【Support WIFi& 2G/3G/4G】The security alarm system supports 2.4GHz Wi-Fi (does not support 5G) and 2G/3G/4G, Please note: Telephone and SMS services can be achieved by purchasing a SIM card or using the app's call and information services. Even without purchasing these, you can still receive alarm notifications via the app. The alarm system itself does not incur any fees. Alarm System for Home Security, DIY, Touch Screen, Motion Detection, Contact sensors, Wireless Siren, Remotes, Phone App, Compatible with Alexa, Continuous Updates,NO Monthly Fees