Thermal Instrument Co. (Trevose, Pa.) released a brochure on Model 600-9FS thermal mass inline flow switch for liquids and gases. The switch has no moving parts and noninvasive flow path, as well as an adjustable set point and alarm. The flow switch is made of different corrosion-resistant metals including 316 stainless steel, Hastalloy C, Monel, Inconel and titanium. End connections are designed to meet user's requirements.