This digital Hygrometer is the perfect tool for temperature and humidity in professional and industrial environment. It supports max/minimum value, data hold, auto shutdown, unit conversion, notification, backlight and over range indication. It is suitable for warehouse, outdoor, freezer, lab, greenhouse, refrigerated truck, and etc. Features - Color: Red - Size: 14x5.2x3cm - Material: Plastic and metal - Humidity measurement: 0~100.0%RH(0.1%RH)±5%RH - Temperature measurement: -10~60 Celsius degree(0.1 Celsius degree)±1.0 Celsius degree / 14~140 Fahrenheit degree(0.2 Fahrenheit degree)±2.0 Fahrenheit degree - Sample rate: 1 time/ supply: 3 x 1.5V AAA battery (not included) - Support: Max/minimum value, data hold, auto shutdown, unit conversion, notification, backlight and over range indication. - Dedicated cover to protect sensor from damaging. - Powered by 3 AAA batteries (not included) and convenient to replace. Compact and portable design enables . - Suitable for warehouse, outdoor, freezer, lab, greenhouse, refrigerated truck, and etc. Package list: 1 x Hygrometer