Motion Detector with Siren, Wireless PIR Infrared Motion Detectors, Set with 38 Ringtones

Motion detector alarm with a communication range of up to 100m (distance between the infrared sensors and the receiver). The infrared receiver's range is 3-7m. It alerts you in advance when guests (or intruders) arrive. The motion detector alarm features 38 ringtones; you can choose your preferred one(s)! It has 3 volume settings: High, Medium, or Low. The receiver can operate in two modes: flashing LED light only, or both sound and flashing LED. Power supply (receiver): AC 110-240V. Power supply (transmitter): 3 x 1.5V AAA batteries (not included) or 5V DC adapters (not included)
Applications: entrance alert, burglar alarm, hallway alarm, pest detector, car alarm (interior), warehouse monitor, closet alarm power supply, garage and tool shed monitor, mailbox sensor, front door or gateway detection.