Stingray uses a submerged ultrasonic sensor to measure both Velocity and Level in the channel. It operates up to 4 years powered by standard Alkaline D-cell batteries. Electronics are housed in a watertight IP67 enclosure and rated for operation from –4° to 140°F. Each Stingray includes Greyline Logger software to retrieve and display logged data by RS232 or modem connection.

No calibration is required. The sensor is mounted at the bottom of the pipe or channel and the Stingray logger stores level and velocity readings. When the log file is downloaded to your computer, the Greyline Logger software calculates flow for round, rectangular, trapezoid and egg shaped channels plus flumes and weirs.

The Stingray uses a completely sealed ultrasonic sensor to measure water level, velocity and temperature. It requires a minimum of 1" (25.4 mm) water level and can measure up to 15 ft (4.5 m) depth. A stainless steel mounting bracket is included and optional pipe bands are available in various sizes.