WiFi Door Alarm Kit Window Alarm Security System for Home Security, APP Remote Control for House, Apartment (1 Receiver & 4 Door Sensors & 1 Remote Control) - Blutown, CS119Door Chimes_1-4

• HOME SECURITY SYSTEM WIRELESS - Smart Home Security System protects you and your family at all times.4-piece kit includes the 1 alarm siren station, 2 windows & door sensors and 1 remote control. No subscription fee HOW IT WORKS - This Smart Alarm Security System can be connected to phone, install the windows & door sensors on the windows, doors and gates, whether you are at home or out, the opening or closing of the door or window will trigger the alarm system, the alarm siren station will sound and at the same time, your phone will receive messages EXPANDABLE CALL ALARM SYSTEM - Support door and window sensors, call buttons, motion detectors, wireless doorbells, and water detectors through Tuya and Smart Life App. it supports expanding multiple sensors and remote controls WIFI SMART HOME SECURITY SYSTEM - You can set the mode of "Arm" and "Disarm" "Stay Arm" on Tuya or Smart Life APP. Works with Alexa and Google Assistant.WIFI connectivity for 2.4GHz WiFi networks only, 5GHz WiFi networks are not supported PLEASE NOTE - Each Door Sensor requires 2*AAA batteries, which are not included in the package. Our product page has product operation video and detailed instructions, if you have any questions, please contact our customer service by email