Equipment

A new hand‐held Mini Hygrometer, capable of measuring concentrations of water vapour as low as 1 part per million in “dry” air and gas supplies, is now being manufactured and marketed by Offshore Electronics Ltd. of St. Peter Port, Guernsey, Channel Islands. The new batter‐powered instrument (see photograph) measures only 130 × 65 × 35mm (5.2 × 2.5 × 1.3 in)—a fraction of the size of earlier models.