Product name: Aneroid Barometer Introduction: 1. A Tool of using deformable element as sensing. 2. Feature: comfortable, precision, large measure range, simple maintenance, no mercury pollution. 3. Applicable for meteorology, military, aviation, navigation, agriculture, surveying, geology, industrial/mine enterprises and scientific research fields. Technology parameters: Plateau type Plain type Measuring range 490~1020hPa 800~1060hPa Temperature range -30~+40 -10~+40 Measuring error â?¤3.3hPa â?¤2.0hPa