... thank you for buying our ultrasonic level meter.The meter includes several proprietary technologies, is safe and ... alkali, salt, anticorrosion, and high temperature.The meter is with following features: Item The Specification of ... ~55Pressure range±0.1MPSound beam angle8o(3db)Testing cycle1secondShell material ABSSensor materialsPVCProtection classIP65InstallationFlange or bracketPower24VDC, ...