The Druck DPI620G-PB is the most accurate and reliable pressure calibrator on the market. With its patented piezoresistive sensor technology, the DPI620G-PB provides unmatched accuracy of ±0.025% of reading. It also features a wide pressure range of -14.5 to 3000 psi, making it ideal for a variety of applications. The DPI620G-PB is also incredibly durable, with a rugged construction that can withstand harsh environments.