Check the listing for details. TECHTONGDA 1 PC Indoor Digital LCD Temperature Humidity Meter Clock Newest. Color: White, Condition: New. Listed at 6.48 USD. 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 hourEveryday alarm function.week display functionLow power consumption.High stability & accuracy.Desk-top placing or Wall Hanging You can find the button hidden under the leg on the back of these that will change it from C to F.Specification:Device color:WhiteTemperature range:Indoor&Outdoor -50~+70℃(-58~158°F）Humidity range:10%~99% RHPower supply:1.5V*1 (AAA size)(Not included)Device dimension:10.5*9.8*2.4cmDevice weight:126gPackage size:18*13*4cmPackage weight:162gHOW 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.Package Includes:1x Indoor Digital LCD Temperature Humidity Meter Clock Item Included: Item# Description QTY Unit 241210 Indoor Digital LCD Temperature Humidity Meter Clock 1 pc