Yoidesu Wireless Motion Sensor Alarm Wireless Door Bell Guest Welcome Alarm with Motion Sensor Infrared Detector Security Doorbell

Description: The detector provides a solution to alert you the moment someone enters your property. When the movement is detected, the Passive Infrared (PIR) sensor detector will sound sweet welcome sound or harsh alarm according to your different needs. It is suitable for dwelling house, tier building, multiple apartments, hotels, factories, hospitals or any other places. It does not only bring convenience but also the be at all happiness and security sense. Specifications: Detection distance: 0-10 meters Detecting angle: three-dimensional sector with angle of 100 degrees Alarm loudness: 100-110 dB  Alarm delay: 15-20 seconds Operating voltage: DC 4.5V Battery: 3 * AA battery (NOT included) Quiescent current: less than 0.5mA. Dynamic current: 180mA. Color: White Material: Plastic Size: 9 * 8 * 4cm / 3.5 * 3.1 * 1.6inch Package weight: 122g Instructions: Alarm Mode: Switch to the "Alarm". If a person enters into the detection area, the doorbell will sound alarm. And the alarm sound will not stop until the person left the detection area for 15-20s. Chime Mode: Switch to the "Chime". If a person enters into the detection area, the doorbell will sound euphonious "Hello, Welcome". Package List: 1 x Wireless Motion Sensor Alarm