The Liquiphant FTL51B and FTL41 vibrating fork (vibronic) level instruments detect the point level of liquids in storage tanks, containers and pipes. FTL51B features Industry 4.0 and IIoT capabilities, including access via wireless Bluetooth technology, automatic proof tests and verification and easy commissioning via a mobile device. A high-visibility LED provides operational clarity. It works in process temperatures of -58 to 302 °F (-50 to 150 °C) and pressures up to 1,450 psi (100 bar). The general-purpose FTL41 is similar to the FTL51B but works at lower pressures, up to 580 psi (40 bar) and with a narrower temperature range of -40 to 302 °F (-40 to 150 °C).