Scientific Devices [Bombay] Private Limited offers Macleod Gauge. Scientific Devices [Bombay] Private Limited is an ISO 9001: 2000 certified company. The Macleod Gauge falls in the category of Pressure Measuring Instruments. A Manometer is a Pressure measuring instrument usually limited to measuring pressure near to atmosphere. Commonly used Liquids in Manometer are Water and Mercury. The Macleod Gauge is suitable for measurement of pressures in the range of 10 mm to 10 square mm or 10 cube mm of Hg. This convenient gauge is a modification of Macleod Gauge. This gauge eliminates the use of a movable reservoir of mercury, and also requires only about 12 cc of mercury for filling. The total size of this gauge is about 9 x6 inch.