Indoor Digital LCD Temperature Humidity Meter Clock Features: Large LCD display,multi-function. Indoor & outdoor temperature display,indoor humidity display and time display. Memory of MAX & MIN measuring value. 12 hour/24 hour displaying system selectable. Clock, Date, Calendar Function (Month and Date). Pointing function on each hour Everyday alarm function. week display function Low power consumption. High stability & accuracy. Desk-top placing or Wall Hanging Specification: Device color:White Temperature range:Indoor&Outdoor -50~+70℃(-58~158°F) Humidity range:10%~99% RH Power supply:1.5V*1 (AAA size)(Not included) Device dimension:10.5*9.8*2.4cm Device weight:126g Package size:18*13*4cm Package weight:162g HOW TO USE THE THERMOMETER: 1. Install power battery(AAA). 2. In the initial state, press « MODE » about 2 seconds, then the time digits start flashing. After that, you can press « ADJ » to adjust the digits’ value. By pressing « MODE » continuously, you can set ‘CLOCK’+ ’12/24′ +’MONTH’ + »DAY ». 3. After time set, the 2 points between ‘HOUR’ and ‘MINUTE’ flashing. Press « MODE » once, the 2 points not flashing, then press « MODE » about 2 seconds and the screen display ‘Alarm’ mode. By press « ADJ », you can set alarm time. After setting alarm time, the current clock will display in 1 minute. 4. Press « MEMORY », you will see the max/min temperature and humidity. Press « MEMORY » about 2 seconds to clear the max/min value. Item Number:241210On Dec 26, 2023 at 18:13:11 PST, seller added the following information: