The TTFM 6.1 transit-time flowmeter from Greyline Instruments provides easy and accurate flow measurement of clean and relatively clean fluids (water, oil, chemicals). Its clamp-on technology does not require pipe penetration, cutting, or welding, greatly reducing costs. It is fast and simple to install in typically less than 30 minutes. It offers improved performance in a wide range of applications, operating conditions, and pipe materials, with high accuracy of plus or minus 1 percent of reading with a 25-1 turndown. A built-in five-key calibrator, intuitive menu and large backlit LCD display make it operator-friendly. At a glance, the user can view flow rate, flow direction, totalizer, relay status, and important diagnostic information on the display. An isolated 4-20mA output for flow rate, two relays for pulse output or alarms, and 26 million-point data logger offer greater flexibility of data monitoring and control. 888-473-9546; www.greyline.com