Manometer: - Digital pressure gauge with 30psi measuring range. Made of ABS material the product is also equipped with a silicon rubber sleeve that adds an extra protection layer to product safety. Features: - With data record function, you can record upto 32 set of data. Data hold, zero settings, automatic shutdown, etc are more add on features along with min/max/avg function. Accuracy: -Equipped with high-quality pressure sensor, the manometer adapts an accuracy of ± 1% FS with response rate of 0.5sec. 11 Selectable Units: - mmHg, inHg, ftH?O, cmH?O, inH?O, KPa, mbar, bar, psi, Kgcm² and ozin² are 11 units available in the selection range. Display: - Large LCD display with back-lit makes the readings clear even in dark surroundings.