Dwyer 2000-500PA-ASF is a Magnehelic® Differential Pressure Gauge with an accuracy of ±2% (±1% for -HA model) throughout the range at 70°F. It has a die-cast aluminum case, IP67 enclosure rating, and can withstand temperatures from -20°F to 140°F. Suitable for air and non-combustible gases, it features a 4" diameter dial face and 1/8" female NPT pressure taps. Standard accessories include plugs, adapters, and mounting options. Overpressure protection is provided with a relief plug.