https://www.alibaba.com/product-detail/Europe-Waterproof-Wide-Range-39C-alert_1600797960072.html?spm=a2700.shop_plser.41413.44.73be14a8EBOZT5 

Function:Measuring range:0C to 50C/32F to 122FResolution:0.1C/0.2FAccuracy:+/-1C/2FC/F can be choice before produceBattery:1 cell battery(1pcs CR2032)Battery life: about one yearThermometer alarm value(default:39.0C)Auto off: automatically sleep after one hour Waterproof