MEMKEY Pack of Magnetic Hygrometer Thermometers - Room Thermometer, Magnetic Indoor Hygrometer, Digital Thermometer for Humidity, Home, Bedroom, Living Room

General description Pack of Magnetic Hygrometer Thermometers designed for measuring temperature and humidity in indoor environments such as homes, bedrooms, and living rooms. This digital thermometer features a magnetic back for easy attachment to metal surfaces. Technical specifications Temperature measuring range: -20℃ ~ +60℃ (-4°F ~ +140°F) Temperature measuring accuracy: ±1.0 (±1.8 °F) Temperature resolution: 0.1 (0.2 °F) Humidity range: 10%RH ~ 99%RH Humidity measuring accuracy: ±3%RH Humidity resolution: 1%RH Size: 6.7 x 4.3 x 2.5 cm Color: White and Black Material: ABS Battery: CR2032 Usage Displays "LL.L" when temperature is below -20 °C Displays "HH.H" when temperature is above 60 °C Green "OK" indicator for comfortable humidity (40% ≤ humidity ≤ 70%) Red "HIGH" indicator for high humidity (humidity > 70%) Blue "LOW" indicator for dry areas (10% ≤ humidity < 40%) Other information If the display is unstable or performance decreases, replace the battery. Battery replacement