On/Off: Press the Power (large) button 5 times within 2 seconds.
Adjust Voltage: Tap the + or - buttons to raise or lower output voltage (in .1 volt increments). The voltage level resets itself to 3 volts when the battery is removed.
Adjust Power: Tap the + or - buttons to raise or lower output wattage (in .5 watt increments). The power level resets itself to 3 watts when the battery is removed.
Check Resistance: With an atomizer or cartomizer installed on unit, press and hold the + button for 2 seconds. Atomizer resistance is displayed in ohms.
Check Battery Voltage Remaining: Press and hold the - button for 2 secs to check actual battery voltage. The display will flash when the battery (or batteries) needs replacing/recharging (approx 3.4v for one cell, 6.8v for two cells)
Voltage/Power Mode: The VAMO can operate either in Voltage Mode or Power Mode. We find that Power Mode is generally easier for users that switch between different cartomizers and atomizers at different resistances as the VAMO will adjust for that resistance and deliver consistent power to the device.
To set the mode, hold the + and the - buttons down simultaneously for about 2 seconds. When in menu "1", you can toggle between "Voltage" and "Power" mode by tapping the left or "down" button. Select the mode you want by clicking the right or "up" button once.