this item

• 【High performance waterproof】: Beam Alarm is completely sealed with polymer coating and waterproof grade IP55. You don’t have to worry about the machine not working due to weather.
• 【Intelligent detection】: Infrared Beam Alarm equipped with smart chip, automatically senses environmental changes, automatically adjusts the radio’s transmit power according to environmental conditions, effectively extending the life of the launch tube while reducing power consumption.
• 【Warning distance】: The maximum warning distance is up to 100 meters / 328 feet. Photoelectric Infrared Sensor is suitable for all kinds of supermarkets, hospitals, schools and factories in an open ideal environment.
• 【Durable】: 100m Beam Sensor is made of high quality ABS material. The surface of the product is painted, beautiful, and not easy to damage.
• 【Quality Assurance】: If you have any quality problems with our products, or if you have any questions about the use, please feel free to ask if you can make a return if you are not satisfied with the purchase, we will try our best to meet your requirements until you are satisfied.