- HOSPAOP FU40 digital thermometer hygrometer, pack of 4 units, white color - Measures temperature (-20°C to 60°C) and humidity (10%RH-99%RH) with high accuracy (±1°C, ±5%RH) - Comfort indicator with icons: smiling face (optimal), neutral (humid), sad (dry) - Ideal for baby rooms, living rooms, offices, kitchens, bathrooms, greenhouses, and wine cellars - Compact and lightweight design (5 x 3.5 x 1.3 cm, 24 g), easy to carry and place - Versatile installation: on table, shelf, or mounted on the wall - Temperature unit switch between Celsius and Fahrenheit - Powered by included CR2032 battery, long-lasting - Fast readings updated every 10 seconds - Helps maintain a healthy and comfortable indoor environment