Overview: This product is a wireless vibration sensor that triggers an alarm when the sensor detects a person or vibration on the door or window. It has a remote control with functions for arming, disarming, emergency alarm, and doorbell. It is widely used in shops, supermarkets, offices, and other important places. Features: * Low power consumption, allowing for long operating time * Remote control makes it easy to use * It has functions for arming, disarming, emergency alarm, and doorbell. * Turning on the door or window can trigger the alarm, making your life safer * 10-level vibration sensitivity adjustment, adapting to the installation environment, compatible anti-theft * 105dB ultrasonic alarm design, effectively scares away thieves who want to break into your home. * Optional alarm and buzzer function * Double-sided adhesive installation, easier to install * Compact, small size and creative design Specifications: Alarm Volume: 105dB Frequency: 433MHZ Working Temperature: -10 ~ 60 ° C Working Environment Humidity: <80% Storage Temperature: -20 ° C to + 70 ° C Host Battery: 2 * AAA (Included) Remote Control Battery: 12V 27A alkaline battery (included) Item Size: Approx. 8.5 * 4.2 * 1.5 cm / 3.3 * 1.7 * 0.6 inches Item Weight: Approx. 31.5g Package Information: Package Size: Approx. 21 * 10 * 2 cm / 8.3 * 4 * 0.8 inches Package Weight: Approx. 80g / 2.8oz Package List: 1 * Door Sensor 1 * Remote Control 1 * User Manual