The HM200 from Digimess is a high accuracy digital handheld manometer designed for low and medium-vacuum applications in industrial, laboratory, automotive and HVAC. It features vacuum ranges up to 1000 mbar and a high accuracy of 0.3% of span, with resolution as fine as 0.1 mbar. The HM200 also features a backlit LCD display, switchable units, over-range indication, a low battery indication to warn when the unit is running low on charge, and an auto shut-off function to help conserve power. Additionally, the HM200 has a USB output which allows you to store readings on your PC.