"Rapidox 1100 HF bench mounted hydrogen gas analyser for 0-10%* or 0-100% (specify on order) H2 analysis. With ejector or pump sampling (specify on order) and flashback arrestor. Includes programmable alarm and analogue outputs with datalogging software. Front mounted gas fittings, F, are standard; if you require rear mounted gas fittings, R, please state preference on order (available at same price).r; the use of FEP tubing is recommended. *0-10% available at extra cost.Panel mounted version in anodised aluminium 4U X 300mm with rear mounted gas fittings only available at extra cost for pump version.Panel mounted version in anodised aluminium 4U X 300mm with front mounted gas fittings only available at extra cost for ejector version."