... 2) Bi-metal thermometer & hygrometer sensor 3) Glass lens Dial thermo-hygrometerDescriptionΦ140mm Comfortable Thermometer & Hygrometer(with stand or wall ... and case2) Bi-metal thermometer & hygrometer sensor3) Glass lens4) Aluminum dial and metal hands 5) Certificate: ROHS,CMC6) Product Size: Φ ... room, factory, farms, laboratories, equipment room, markets, warehouses, etc. Dial thermo-hygrometer