Features 1、It can monitor the indoor temperature and humidity in real time, allowing you to master the indoor environment data, and better care for your family 2、Built in high accuracy temperature and humidity sensor, large measurement range, to ensure the accuracy of measurement data 3、Large LCD screen display, clear imaging, easy to read, 10s automatic refresh data, to achieve real real time monitoring 4、Powered by 2 AAA batteries, the battery life is increased by 80% compared to traditional button battery products, effectively avoiding the trouble of frequent battery replacement. 5、Equipped with magnets and hanging holes to facilitate adsorption or adhesion to the wall; the folding bracket design is convenient for fixing the swing table Specification Item Type: Thermometer Model: OW-159 Material: ABS Battery: 2 x 1.5V AAA(battery not included) Purpose: Household temperature and humidity meter Range: -20~70℃ (-4~158℉), 20%~95%RH Accuracy: 0.1℃/0.1℉ Accuracy: ±1℃ (0~50℃/32~122℉), ±5% (30%~85%RH) Measurement cycle: 10S Package List 1 x Thermometer(battery not included) 1 x Manual