Dwyer 4204 Capsuhelic® Differential Pressure Gauge is a reliable and accurate instrument for measuring pressure in a variety of applications. With an operating temperature range of 20 to 200°F (-6.67 to 93.3°C) and an accuracy of ±3% of FS at 70°F (21.1°C), this gauge ensures precise readings. It features a die-cast aluminum housing with an impregnated hard coating, making it durable and suitable for use with air, gases, and oil-based liquids. The gauge has a diaphragm in a vertical position and comes with 1/4" female NPT high and low pressure taps for easy installation. Additional accessories such as plugs and mounting adapters are included.