How to set the time (The factory Default Time is 12:00):
1. Press the SET button and you wil see the hour will flash in the display.
2. Press the UP and DOWN button to set the correct time.
3. Repeat step 1 and step 2 to set the minute.
Kindly Note : Press SEt button until 12H showed to switch between 12 hour and 24 hours format by pressing the Up&Down button on the normal time display.

How to set and turn on the alarm clock :
1. Keep press the SET button until "--:R1" flashling display on the screen.
2. Press the Up or Down key to make "on:R1" and "alarm 1" showed on the screen, then press SET button to enter hour and minute setting.
3. Press the Up or Down key to set the Hour, and then press Set button to enter the setting of Minutes.
4. Lastly press the Set button to save the setting of alarm clock 1.
Kindly Note : 1)The setting steps of the alarm clock 2 and alarm clock 3 are the same as above operation. 2) When you pressed any key to stop the ring, it still will ring up at the same time tomorrow.

How to cancell the alarm clock:
Press the SET button until seeing "on:R1", you can press Up or Down to adjust to the "--:R1'
Kindly Note : "on:R1", "on:R2" and "on:R3" mean the alarm clock is on, and the "--:R1", "--:R2" and "--:R3" mean the alarm clock is off. Just need to press the Up or Down key to switch the on/off state when at these 2 kind of states.

Specification
INPUT: DC 15V
SET Key : to set time/alarm time
UP Key : to go forwarder
Down Key : to go backward
C/F Key : to switch between ℃ and ℉
Reset Key : reset to factory setting
Battery Backup : 3*AAA battery (Not included)

Package Contents 
1 * BonyTek Thermometer Hygrometer with Clock
1 * User Manual
1 * Data line

• All-in-one design : This electronics is an all-in-one device with thermometer,hygrometer,clock and alarm clock to save more places on your table and modern your bedroom. Electronic mute digital display help getting rid of bored "DiDa" sound. Using USB data wire plug in use.
• 3 Alarm Clocks Setting : The clock allows setting 3 alarm clocks and they can be cancelled or set separately with the indicating mark; The alarm ring will last 1 minutes if you didn't press any key to stop the alarm ring.
• Auto-brightness Setting : Total 3 brightness for the screen display; 6:00~6:59 and 18:00~22:59 are in medium brightness, 7:00~17:59 is high brighness and 23:00~5:59 is low brightnees, very smart.
• HD Screen Display : Display the seasonal humidity and temperature (℃/℉)accurately, display the time at 12-hour or 24-hour format clearly, it can always pay attention to the subtle changes in your surroundings.
• Power off Memory Function : This multifunctional clock is powered by the DC5V power source. When the power is suddenly off, it will be powered by 3*AAA battery(Not included) to keep the setting before.

All-in-one design : This electronics is an all-in-one device with thermometer,hygrometer,clock and alarm clock to save more places on your table and modern your bedroom. Electronic mute digital display help getting rid of bored "DiDa" sound. Using USB data wire plug in use.BonyTek