Use the Premium Twin-Gas Sizer Balloon Inflator to electronically and digitally inflate 2 latex balloons. Use this machine to inflate latex balloons using helium, nitrogen, or compressed air. It is possible to use one or both nozzles while inflating balloons to the same or different sizes. It is easy to switch from helium to nitrogen. The inflation counter tracks the total number of balloons inflated. There is a +/- button for each nozzle to adjust the count. This machine includes a high-quality, padded, protective carrying case, a foot pedal, and a universal power supply with plug set for all voltages and all plug types. It is listed as 120volt for USA, 230/240V for Europe, the UK, and Australia. The Premium Gas Sizer is CE approved for Europe and the UK and includes a 1-year conditional warranty.