... thermo-hygrometer 1) ABS bezel and case 2) Bi-metal thermometer & hygrometer sensor 3) Glass lens Dial thermo-hygrometerDescriptionΦ140mm Comfortable Thermometer & Hygrometer( ... Blue/Pink/Yellow or according to your requirements. Specification:Temperature measuring range:-10C~50C, Humidity measuring range:20%~90 ... farms, laboratories, equipment room, markets, warehouses, etc. Dial thermo-hygrometer