Description: Function: This thermometer provides you accurate humidity and temperature readings for indoor . Air omfort indicator: Level icons indicate air comfort, great for monitoring family's living conditions and health. Clear reading: Large screen features large numbers, allowing easy readability. Conveient design: You can attach to refrigerator with the layard hole and back sticker. Application: Suitable for office, bedroom, living room, bathroom, school and more. Good quality: Made from good quality ABS plastic, which is sturdy and durable, stylish design perfectly matches with your room. Specification: Size: 43x42x13mm Material: ABS Color: White Temperature range: -50°C ~70°C (58°F~+158°F) Temperature accuracy: ±1°C (1.8°F) Temperature resolution: ±0.1°C (0.2°F) Humidity range: 10%~90%RH Humidity resolution: 1% Battery: CR2032 Button Battery Package Includes: 1x Thermometer Hygrometer(4 Pack) : Conversion: 1inch=2.54cm, 1cm=0.393inch Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!