The equipment for measuring the low level gas release rate of tritiated wastes is designed to match the storage requirements for the preservation of the environment. The measuring method which has been developed by the Commissariat à l'Energie Atomique (C.E.A. ) at BRUYERES-LE-CHATEL centre is based on the use of an ionization chamber (or a bubbler for a higher sensitivity) with an associated tritiated waste containment system. USSI INGENIERIE has industrialized and adapted this technology to industrial purposes to the specific research requirement of the European Tritium Handling Experimental Laboratory (ETHEL) of the CEC located at ISPRA Site under a Feasibility study contract financed by CEC ISPRA. This unit is designed to enable R&D studies with regard to the release rate of tritiated wastes like those which will be generated by the Fusion reactors of the future. Such a unit is subsequently described with the equipment needed for its operation.