monotaro Sensor Light LED Door Opening and Closing Caution Sign Lamp

On the other side of the door, a sensor detects moving objects such as people, and the light on the other side flashes to notify you. It can be attached to a steel door with a magnet on the back. It can also be fixed to wooden doors with screws.
* For alerting when opening and closing the door
*The motion sensor is affected by temperature and weather. When the outside temperature is high, such as in summer, the temperature difference with the body temperature of the person becomes smaller, making it difficult for the sensor to detect. Conversely, when the outside temperature is low, such as at night or in winter, the temperature difference becomes larger, making it easier for the sensor to detect. *Do not use outdoors or indoors in places where water may splash or in humid places, as this may cause fire or malfunction. *Do not use on fire doors, etc., as this may interfere with the operation of the main unit. *If not using for a long period of time, remove the batteries from the main unit and store them. *Do not disassemble or modify this product as this may cause electric shock or malfunction. *LED cannot be replaced. *When the red lamp is lit, it is a guide to replacing the batteries. *Do not use on doors that are 50 mm thick or more, or in places where there is no gap of 2 mm or more between the door and the door frame when closed, as there is a possibility of disconnection. *Do not use on doors for fire prevention purposes, as this may impair the original function of the door.