ProSense® FTS Series thermal flow sensors offer a very cost-effective solution for monitoring water, glycol solutions, or air flow. With no moving parts, thermal flow sensors are a reliable alternative to mechanical flow switches and other flow sensing technologies. With 4-digit display and pushbutton setup, the FTS series is easily configured to measure flow velocity in feet per second (fps), or by entering the internal pipe diameter, volumetric flow rate can be measured in gallons per minute (gpm) or cubic feet per minute (cfm). Available with probe lengths of either 100 mm or 200 mm, FTS series sensors can be used in pipes up to 16 inches in internal diameter. Two outputs can be used as flow or temperature limit switches or to monitor continuous flow rate or temperature. FTS series flow sensors start at $235 and have a 5-year warranty.