We are offering McLeod Gauge. A mcleod gauge is a scientific instrument used to measure a very low pressure. This instrument can be manually operated & its scale read visually. Range of the mcleod gauge : 1. 10 mm to 0.01 mm of hg 2. 1 mm to 0.001 mm of hg specifications outer supporting cover : aluminum or acrylic plastic body internal measuring body : glass tube body back supporting stand : ss ms aluminum nozzle : stainless steel grade 304 316