Ashcroft 1490 Low Pressure Diaphragm Gauge, model 25-1490-A-02L-60ZSI, is an industrial pressure gauge designed for very low-pressure measurement. It features a 2.5-inch dial and a dual-scale configuration with an inner range of 0–60 oz/in^2 (ZSI) and an outer range up to 100 inches of water (IW), making it suitable for precise monitoring in low-pressure gas services. This gauge is part of Ashcroft’s 1490 family and is commonly used for natural gas and other gases, including applications such as leak testing, compressor and gas-distribution monitoring, where accurate low-pressure readings are required.
