More Professional Design: Our house alarm uses the latest infrared detection technology and intelligent analysis algorithms, which can effectively distinguish interference signals and human movement signals to prevent false alarms. Detection range of the infrared sensor of 16-26ft, remote control distance up to 328ft in open area, activates 125dB siren and strobe light when it detects an intruder. | Protect Your Family and Property: Motion detectors are essential in a home security system, AMHEY is a complete stand-alone motion sensor-based alarm system for Driveway, window,garage,car anti theft,stair,office,Store.Motion sensor alarm systems can used to prevent children from sneaking out, preventing pets from going to somewhere,nearby wild animals or strangers approach. | Multi-Function, Multi-Mode - This outdoor motion sensor alarm has TWO modes(doorbell mode or alarm mode); TWO volume levels; Besides, it provides a remote control (key fob), pressing the panic button on the remote and the host will alarm immediately. It's not only an alarm, but also a door motion sensor chime, caregiver pager. | Easy Installation and Operation: Using the film sticker, it can be installed in less than 30s(We provide two screws and a film sticker). portable motion detector alarm has two power supply methods(AAA battery or USB charging),don't worry about running out of power in an emergency. You can take it when you go to live in a tourist hotel alone or camp outdoors.Note: Please read the manual carefully before use | 1 - Year Warranty:You will enjoy 1 - year warranty from the day you receive the home security alarm. If you have any questions, Please don't hesitate to contact us.Note: The volume is adjustable..Package Contents: 1 x Motion Sensor Alarm,1 x Remote Control,3 x AAA batteries,1 x Double Side Tape,2 x screw,1 x Instruction manual.