Dwyer 2000-250PA-ASF is a Magnehelic® Differential Pressure Gauge with an accuracy of ±2% (±1% on -HA model), suitable for air and non-combustible gases. It has a temperature range of 20 to 140°F (-6.67 to 60°C) and an enclosure rating of IP67. The gauge features a 4" dial face, a die-cast aluminum housing with a gray corrosion-resistant finish, and a pressure limit of -20 in Hg to 15 psig. It comes with standard accessories including pressure taps and adapters.