1. [High-precision real-time monitoring] The high-precision sensor built into the hygrometer helps to accurately and in real time measure the temperature and humidity in your environment, helping you create a comfortable and cozy environment 2. [High-precision sensor and fast refresh] This digital indoor thermometer indoor hygrometer refreshes every 60 seconds to provide updated and latest accurate readings. Wide measurement range, can measure temperatures of 32˚F-140˚F (0˚C-60˚C) and relative humidity of 10%-99%, temperature accuracy: ±2˚F (1˚C); relative humidity accuracy: ±5%RH 3. [Indoor Thermometer Multi-function Meter] The temperature and humidity monitor has 3 physical buttons: one button to switch °C°F, one button to switch time and date, and an alarm. There is also a memory function that can record the maximum and minimum values of past data. A variety of functions are readily available to meet your different needs 4. [Maximum and minimum records & alarm] Press the MINMAX key to view the indoor temperature and humidity records, displaying the maximum and minimum temperature and humidity within 24 hours, and the alarm makes your time more regular