Thermometers and hygrometers can be used in homes, offices, cars, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshops, libraries, schools , factories and air-conditioned places. Wall-mounted hygrometers can be well hidden in any small space without taking up too much space. It is a practical household gadget and practice. Small, durable and portable enough to save space and carry. The wall thermometer is made of sturdy ABS material and glass for durability. parameter Type: Pointer Thermo-Hygrometer Size: 230*74(mm) Scope of application: home breeding greenhouse Range Temperature Measurement: -30 ~ 50 (°C) Humidity measurement accuracy: 0% ~ 100% RH (RH)