If you have a forklift truck with a standard exchange type FLT bottle which is either filled by yourselves or exchange by Calor, Flogas or any exchange gas bottle company then the GAS IT MLD system is what you need.
The Minimum Level Detector (MLD) signals the driver that the forklift truck is low on Gas and gives the driver plenty of time to finish the current task and return to the exchange cabinet for a full tank, instead of only a few seconds notice before running empty.