1Pair 20m Single Beam Photoelectric Detector Infrared Sensor, Egg Shaped Photoelectric Infrared Detector, Active IR Sensor Alarm for Home Door Security

• Premium Quality Material: This Single Beam Photoelectric Detector is made of high quality plastic shell, which is eco-friendly, and sturdy to use
• 20 Meters Infrared Detector: This Photoelectric Infrared Detector can create a and invisible infrared beam up to 20 meters
• Widely Applications: This Photoelectric Beam Sensor Alarm has a widely application during daily life, it can be installed for security system, such as school, office building, hospitals, home yard, etc.
• Easy to Install: There comes with equipped screws for easy installation, and the half egg shaped can be easily and quick installed on the wall or door to protect your safety
• Note: Range can be reduced to 30% in bad weather conditions: fog, rain, dust, etc

Description: This pair of infrared detector need install them at the opposite positions. There is a infrared area between these two detector parts. When someone passes the infrared region for an adjusted response time, the detector will send alarm signal, great for security system in school, office building, hospital, parking and home yard, etc. Specification: Condition: New Brand Color: Black Shell Material: Plastic Receiver Range : Less than 20m Infra-red Frequency: 1.92KHZ Wavelength: 940nm Voltage: DC 12V Input: RX 15mA-TX 30mA Operating Temperature: -10℃ to 70℃ Relay Output: 1A max 30V, constant open/close, can be set by jumper wire Size (L x W x T): Approx. 76 X 49.2 X 21.6mm / 3 x 1.9 x 0.9inch Package Weight: Approx. 130g Package Included: 1 x Transmitter 1 x Receiver 1 x Set of Accessories 1 x User Manual Note: 1.The best installation height should be more than 20 cm, distance is not less than 2 meters. 2.Infrared device should be installed vertically, and at the same level. 3.First installing receiver, then installing transmitter. When the off light of receiver is turning off, then fixed it, installation finished. 4.Distance between receiver and transmitter need be more than 1m, otherwise it will be insensitive appearance.