[HIGH ACCURACY] - Temperature Measurement Range: -58F to 158F; Humidity Measurement Range: 10% to 99%RH. Measurement results deviate within 2F and 5%RH. [WIDE APPLICATIONS] - Suitable for use in incubators, brooders, reptile tanks, guitar cases, cigar humidors, basements, attics, homes, restaurants, greenhouses, and offices. Compact size allows placement in tight spaces. [FAST RESPONSE] - Mini thermometer hygrometer measures temperature and humidity every 10 seconds. Features 4 sensitive vents for accurate data collection. Package includes 5 mini digital thermometer hygrometers with batteries installed. [MINI SIZE] - Compact design measures 0.66 x 1.89 x 1.13 inches per unit. Ideal for reptile tanks, refrigerators, closets, or any location requiring temperature and humidity monitoring. [BUILT-IN PROBE] - Equipped with integrated sensors for reliable temperature and humidity detection. Allows for flexible placement to monitor environmental conditions effectively. Color: Black Material: Plastic Package Contents: 5 x Mini Digital Thermometer Hygrometer Note: Light and screen display differences may cause slight color variation between the image and the actual item. Measurement error is +/- 1-3 cm.