Item Type:Single Infrared Beam Sensor Material: Plastic Product Size: Approx. 96 x 43 x 22 mm / 3.78 x 1.69 x 0.87 in Transmitter: Input Voltage: 12-24V AC/DC Working Current: 20mA Receiver: Input Voltage: 12-24V AC/DC Working Current: 32mA Package List 1 x Receiver 1 x Transmitter 2 x Double Sided Adhesive 6 x Screws 4 x Expansion Screws 1 x Instruction Manual 1Safety Protection: Use our waterproof single beam infrared detector to give you a sense of security; It is sensitive to heat and movement during the day and night, and is a reliable alarm system. 2Classic Design: The sensor has a fashionable black appearance, which looks small and beautiful. It is integrated into your home decoration and does not affect the aesthetics of the room. 3Durable: The infrared sensor is made of plastic, durable, impact resistant, anti aging, very reliable, and has a long service life. 4Widely Applicable: The motion sensor alarm is suitable for the safety of residential, farm, villa, hotel, market, boarding apartment and other places that require safety alarm. 5Monitoring Reminder: The motion detector alarm adopts advanced technology, which can respond quickly, remind visitors, and scare off unwanted intruders.