The 2000-HA Series High Accuracy Magnehelic® pressure differential manometer is twice as accurate as the standard Magnehelic® manometer. The High Accuracy Magnehelic® pressure differential manometer provides a mirrored overlay to eliminate any parallax errors when measuring. A six-point calibration certificate is included with any high-precision model. The robust IP67 housing (front) helps to completely protect against dust and water. The optional corrosion-proof brushed stainless steel ring provides a tapered design that minimizes the possibility of dust accumulation at the edges.