⭐︎ Purchased around January 2025 and used for about 8 months. This is the same sensor used at the hospital where I gave birth. I was filled with anxiety as a first-time parent, but thanks to this, I was able to sleep soundly. I placed it under the mattress of the baby bed. ⭐︎ There are no noticeable stains or scratches on the main unit or sensor panel, and I think it's in good condition. ⭐︎ Operation has been confirmed as of October 2025. Please note that batteries are not included to prevent leakage, so please prepare them yourself. (4 AA batteries are required) No pets or smokers. Although a significant price reduction may be difficult, I am open to price negotiations.