Thank you for viewing. This is a sensor I used to protect my child's safety while sleeping. Operation has been confirmed. It works without any problems. There are no scratches on the main unit. Babysense Home with a highly sensitive sensor that detects the baby's movements. - Brand: babysense - Model Name: home - Included items: Sensor, mounting clips, two mats, instruction manual ※ Although the battery replacement tool is missing, the battery cover can be removed by pressing firmly on both sides. - Instruction manual language: Japanese Purchased in October 2024 Used for 1.5 months Retail price: Approximately 27,000 yen We do not have any pets or smokers in our home.