General description Pack Mini Hygrometers are digital thermometers designed for measuring indoor humidity and temperature. Their compact and simple design allows for discreet placement in various environments, making them ideal for home, office, car, and more. Technical specifications Temperature range: -50 to 70°C Temperature deviation: ±2°C Humidity range: 10%~99%RH Humidity deviation: ±5%RH Usage These hygrometers are perfect for monitoring indoor humidity and temperature, helping to adjust settings for humidifiers, dehumidifiers, and humidistats. They are essential for maintaining healthy living conditions by preventing issues such as colds, dry skin, asthma, and mold. Other information Includes 8 digital thermometer hygrometers Each device comes with two AG13 button batteries Replace the battery when the screen goes dark