Brief introduction: Using large 1.2 -inch digital tube, with room temperature display.Customized special translucent crystal shell, high-end grade atmosphere.Using RX8025T high precision clock chip, timing accuracy.5 ~ 35 v dc supply (only connect the power supply, digital will be light), and to support 5 v android mobile charger power supply directly.With a buzzer, there are three groups of alarm clock. Parameters and the size: 1, The power supply voltage: 5 ~ 32 v dc, Randomly send XH2.54 plug the power cord 1 (note:Micro usb socket can only be inserted into the 5 v android mobile phone charger) 2,The power supply current: More than 200 ma dc power or charger. 3, appearance size: 16*5.2*2.1CM (6.2*2*0.8inches) 4, automatic light control, such as dark at night under the condition of digital will automatically dimming, automatically improve digital light during the day 5, bring back the battery, with the function of time memory, external power supply does not affect the time when walking 6, temperature measurement on the right side of two digital display area - 9 ° to 99°, the main display area can display range - 40 ° ~ 120 ° Instructions: briefly 1, is used to set key set up time, date and year.Cooperate to increase and decrease the keys to use. 2, adjust the parameters and add key time used to increase the value.This button also contains the function of adjusting loop display (see instructions) 3, adjust the parameters and minus key time used to decrease the value.This button also includes automatic adjust the temperature error, brightness, brightness etc (see instructions) 4, is used to set the alarm clock time, alarm clock key 3 set the alarm clock, set when look at the upper right corner of the display of A1, A2, A3, respectively, on behalf of the three groups of alarm clock.