Oxygen Concentrator OX-Plus Oxygen Analyzer for Pets Although the category is "dog," it can also be used for cats. - Model: OX-Plus - Brand: UNICOM - Function: Oxygen Analyzer - Size: 122 x 78 x 40mm - Weight: 175 grams - Power: 3 AAA batteries - Purchased: January 2025 - Accessories: Box, booklet - Price: 39,600 yen (tax included) Used for about 1 hour a day, and no longer needed, so I'm selling it. Usage period: 4 months *Operation confirmed on October 3, 2025* *Everything in the photos is included. Please check the photos.* The batteries have been removed, so please prepare them yourself. I haven't listed it yet, but I also have a UNICOM-specific cage.