The Model FT4A thermal mass flowmeter (photo) is designed for monitoring pure gases, mixed gases and complex flare-gas compositions. Three onboard gas-selection menus encompass numerous configuration options. The meter features non-cantilevered advanced sensor technology that eliminates sensor element vibration, which can potentially cause metal fatigue or failure. Also available with these instruments is the CAL-V in-situ calibration validation routine, which allows users to quickly confirm that the meter is functioning properly. Included software enables easy adjustments to the meter, evaluation of alarm conditions and collection of data. — Fox Thermal Instruments, Inc., Marina, Calif.