Recommended blender to prepare mixtures of nitrox and trimix in low pressure and continuous flow; this prevents all dangers while making a recharge with pure oxygen.It can be used with compressors of any type or make with a flow rate 6.000 to 35.000 Lt hour either electric or combustion engine ; it must be settled before the compressor and nothing has to be modified  if you need charging only air.  The cylinder works in any positions. Indicated for the preparation and recharges of Nitrox, Heliair, Trimix. 
In version GENIUS a control panel replaces the simple analyzer of the Basic version , able, during recharges, to verify in real time through a display retro lighted the mixture nitrox or helium percentage that is being loaded.  It controls the two solenoid valve placed on O2 and He reducers pressure and it stops  the compressor and the solenoid valve signaling the anomaly with a visual and sonorous alarm, in case the percentage of oxygen exceeds 42 %. To specific written demand for the purchaser it is possible to raise the alarm threshold up to 52% of O2 or even to eliminate the block.