Features: 2 In 1: 2 in 1 digital humidity and temperature meter. Accurately measure any environments temperature, relative humidity (RH), dew point, wet bulb temperature, Switchable: One-step switch between C and F, Auto power off: Device will power off automatically to save battery when not in use in several minutes, LCD backlight: Adjustable LCD backlight for clearly showing data, Occasion: Suitable for home/office and car or part scope on air quality detection. Specifications: Material: ABS Color: black Size(L x W x H):about 56.1x29.8x171.4mm/2.21x1.17x6.74inch Power supply voltage: 1.5V Measuring range: -20 - 70 Power by: 3 x AAA batteries(not included) Package included: 1pc x humidity temperature meter 1pc x manual Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.