1. Product Profile:
Four control buttons: Button 1-SMOKING; Button 2-MENU; Button3-MINUS; Button 4-PLUS
1.77-inch TFT LCD
Capacity range: 10~100W
 Resistance range: 0.1 ~ 4.0Ω
 Input voltage range: 6.0V - 8.4V/30A
Output voltage range: 1.0V-5.5V
Battery Protection in case of overvoltage, overcurrent and overheating
Time range for one inhaling of smoke: 3-10S

2. Operation
 The screen will display ‘Power standby...’ when the device is turned on. Then long press SMOKING, SD card check will be activated. If the SD card is detected, the screen will display ‘Initialize SD card...’ and , after 3 second,  the specified image stored in the SD card. If no SD card is detected, the screen will display ‘Cannot find SD card’ and no image will be on the screen.
 Display speed will slow down when there is no SD card. The image cannot be showed properly, if there is file error or  no specified picture in the SD card. 3 second after showing the image, the device will enter the main interface of voltage control, as shown in the picture below.  

 
Set output voltage and battery voltage in the interface. Information in the sub-menu bar will be showed in the screen simultaneously, while value of resistance, current and capacity will be showed dynamically when smoking.
1） Press MINUS or PLUS to adjust output voltage in the main interface of voltage control.
2）Press SMOKING in the main interface of voltage control, the system will measure the resistance of the heater. If its resistance is within the specified range, smoking mode will be activated, with the heater heated and ‘VAPING’ turning from gray to green. At the meantime, the measured value of resistance, current and capacity along with smoking time will be showed on the screen. The heater will no longer be heated once the user’s smoking time surpass the preseted maximum smoking time, with ‘VAPING’ replaced by a red ‘TOT’, to remind the user that he has smoked for too long. Then release SMOKING, VAPING will be on the screen again. If the resistance of the heater surpass the specified range, or the heater incorrectly connected, smoking mode will not be activated, with the value of resistance of the heater become ‘infi’ and ‘VAPING’ replaced by ‘ANP’, to notice the user that the heater is not working properly. Notably, if the heater is small and the output voltage set beforehand would send the output capacity over 100W, the system will fix the output capacity at 100W for security, not following the preset output voltage, with the actual value of voltage ,rather than the preset one, displayed on the screen.
3）Long press MENU for three times in the main interface of voltage control, the system will enter sub-menu selection mode. In this mode, the user can press PLUS or MINUS to select a sub-menu and then long press SMOKING to enter. The first sub-menu bar is for locking the device, if selected, with a lock icon showed on the top of the screen. The second sub-menu bar is for setting parameters such as screen brightness, maximum smoking time, output voltage and output capacity. (Note: output voltage and capacity can be set in ether voltage control interface and capacity control interface, with the same effect. )
The third and fourth sub-menu bar is to show the value of parameters of the system and product ID, etc.  When in the sub-menu selection mode or sub-menu mode, press MENU, the system will return to the main interface of voltage control .
4） Long press SMOKING and MENU at the same time for 3 second in the main interface of voltage control, the system will enter lock mode, with an icon of lock showed on top of the screen, at which point, smoking or setting cannot be performed. Long press SMOKING for 3 seconds in the lock mode, the system will enter standby mode, with nothing shown on the screen. Then long  press SMOKING the system will return to lock mode, at which point the system will return to the main interface of voltage control if SMOKING and MENU are pressed at the same time.
5）Press MENU and MINUS at the same time in the main interface of voltage control, the system will measure the resistance of the heater, and enter capacity control interface, as shown in the picture below.

In the capacity control interface and the main interface of voltage control, content displayed is similar to each other.
1)Press PLUS or MINUS In the capacity control interface to adjust the value of output capacity.
2)In the capacity control interface smoking operation is the same with in the main interface of voltage control. Notably,  if the heater is relatively big and the output capacity set beforehand would send the output voltage over 5.5V, the system will fix the output voltage at 5.5V for security, not following the preset output capacity, with the actual value of capacity ,rather than the preset one, displayed on the screen.
3)In the capacity control interface, operation for sub-menu selection and its contents are the same with in the main interface of voltage control.
4)In the capacity control interface, press MENU and MINUS at the same time, the image in the SD card will be displayed. The system will switch back to capacity control interface if the two buttons are pressed again at the same time.when the image is displayed on the  screen you can smoke but cannot adjust the voltage.
5)In the capacity control interface,  press MENU and PLUS at the same time, the system will return to the main interface of voltage control.

3. Product specification
Short-circuit protection                                           YES
Reverse polarity protection                                     YES
Over-voltage and low-voltage protection                YES
Overheating protection                                            YES
Battery lock mode                                                    YES
LCD function(in bright mode, standby mode,etc.)  YES
Number of battery                                                       2
Minimum output capacity                                        1W
Maximum output capacity                                       100W
Minimum output voltage                                           1V
Maximum output voltage                                         5.5V
Minimum output current                                          0A
Maximum output current                                         20A
Minimum resistance                                                0.1Ω
Maximum resistance                                               4.0Ω
Minimum input capacity                                        180W
Maximum input capacity                                        360W
Minimum input voltage                                          6.0V
Maximum input voltage                                          8.4V
Minimum input current                                            30A
Maximum input current                                            60A