No hidden costs and subscription fee: No contract with security company with Free app, your alarm kit includes 1 alarm host,1 motion detector, 2 remote controls, 10 door/window sensors, 2 rfid cards and 1 wired siren, all come with the required batteries. Support WIFI and 3/4G GSM dual network(you can use GSM if there is no WIFI, The WIFI only can work with 2.4G, not work with 5G), Different alarm status: away arm, home arm, delay arm and timely arm The home alarm system can add a total of up to 100 sensors and 2 wired sensors, no longer have to concern about leaving the door open and always think about the home will enter the burglars, Independent zone delay alarm and arming. Power goes off and comes back on send SMS function, with a backup battery, no longer have to worry about burglar cut off the power and make the alarm failure, Arming and alarm deactivation can be conveniently done by remote control, app rfid card or call. Long range singnal, the door sensor built in long antenna, can covers up to 2,500sq. ft. You can Choose the Alarm kit that fits your needs and add additional components and accessories at any time. such as motion detector, shock sensor, range extention, water leak sensor etc. 1. GSM+WiFi dual communication network transmission alarm. 2. 2.4-inch TFT LCD display, menu operation, simple and convenient for use. 3. The alarm hub can be matched with up to 100 wireless detectors, 10 remote controllers, and 10 RFID tags, also with 3 wired defense zones, and supports NO/NC alarms. 4. Available in 11 languages 5. Use the alarm keypad, remote controller, RFID tag, and mobile phone APP to control the host to arm and disarm. 6. It has the function of prompting the doors and windows are not closed properly and the sensor low- voltage prompting (need to configure special door magnets and sensors). 7. 5 groups of alarm telephone numbers, 5 groups of alarm SMS numbers. 8. With the function of making a call, any call can be made on the keypad. 9. Built-in alarm siren and external siren to intimidate thieves (built-in 433 transmitter, configurable wireless sound and light siren). 10. The alarm sounding time is adjustable (default 3 minutes). 11. It has the functions of delay arm and delay alarm setting. 12. With 20s voice recording and voice prompting function for arming and disarming. 13. With record query function (alarm record, arm and disarm record). 14. Built-in high-performance rechargeable lithium battery, no power failure.