This is a Timemore thermometer. I purchased it from the official online store of "Kurashi to Coffee." I haven't used it much because the kettle with a thermometer is sufficient. I've also attached the online receipt as proof of purchase. This item is sold out and difficult to obtain, so please consider it if you are looking for one. *Price adjustments will only be considered over time, so please understand that I cannot respond to comments regarding price. *I am also listing this item on other platforms. I strive to reflect sales in real-time, but in the unlikely event of overlapping purchases, I may have to cancel the order. Thank you for your understanding.