Brinonac Digital Hygrometer Home Office Electronic Thermometer Big LCD Touch Screen Time Clocker with Backlit Calander Clock Alarm

Temperature Detection Range: -10 ° C - 70 ° C (14 ° F - 158 ° F)Humidity Detection Range: 10%-99%Tolerance: +/-1 °C, 2°F, 5% RHAccuracy Range:0.1°C?1%RHPower Supply: 2* 1.5V AAA batteries"MODE" & "ADJ" Touch Key:Press MODE key once to switch clock and alarm function.Time display state, press MODE 2s to enter time settings, set time and date. when digital flashing, press ADJ to adjust, after completion of a set, then press the MODE, and naturally enter the next setting. If without any operation after 1 min, the interface will automatically exit.Alarm clock setting (AL) display state, press MODE 2s to enter alarm time setting, operation mode is similar to the time setting.During the alarm time displaying mode, press "ADJ" once to set the alarm on/off. Press ADJ twice to set hourly chime function on/off. Press ADJ thrice to set the alarm and hourly chime function on/off at the same time."MAX/MIN" Touch Key: Press "MAX/MIN", it will display the max/min value of temperature and hunidity."LIGHT" Touch Key:Press "LIGHT", the screen backlight will last for 5 seconds.