Grestok GS-DA110 GS50006 Standalone Door Security Sensor Alarm Infra-Red Sensor Door & Window Door Window Alarm  (120dB)

The wireless and portable design allows you to install the wireless entry alert doorbell anywhere in your home, work, office, retail store or business. Secures any door or window, the main access points to your home, triggering your alarm & sends a notification to the connected device. The latest technology to make sure your home stays secure and protected. Our door alarm kit comes with a wireless remote control, you can use it to arm, disarm and control the door alarm, works without wires and has a low energy consumption. This wireless doorbell boasts a remote connection. Stronger Wi-Fi signal and longer transmission distance, no longer have to worry about Wi-Fi doorbell losing connection. The door sensor alarm can be used for both doors and make you aware when someone exits or enters your house.