Heatstroke Prevention Watch Canary Plus 2025 Model An alarm sounds around a core body temperature of 38°C. This product operates continuously for 5 months after activation and is designed for one season of use. Used on-site, it was switched on June 10th and used for 5 days. Afterward, it was disinfected with alcohol wipes and stored, but there are scratches from contact with wood. Since it has been used for 5 months, there is still almost 1 month of usage remaining. However, the usage period may vary depending on temperature and storage conditions, so please be aware that it may stop working immediately upon arrival. This is why it is being offered at a bargain price. *As of 2025/10/4, the green light has been confirmed to be on.*