Abstract
A Selection of Equipment of Use in the Production and Maintenance of Aircraft, Missiles, Space Vehicles and their Components. Servomex Controls Ltd. of Crowborough, Sussex, have introduced a new battery‐powered portable—type OA.150—to supplement their range of oxygen analysers. The new instrument has two switched ranges, 0–25 per cent and 0–100 per cent, with an accuracy of ± 1 per cent f.s.d. on each range.

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