1. Portable, ultra-sonic, transit time, non-intrusive flowmeter for measuring pipe flow of various qualities, pressures and temperatures at a flow range of 0-2500 GPM. • System must include clamping fixture with transducers, protective carrying case, rechargeable battery pack or spare battery, pipe wall thickness gauge, and energy measurement kit. All units will include detailed software application instructions and installation set-up instructions. 2. Water resistant housing and able to withstand operation and storage in temperatures ranging from 32 degrees to110 degrees Fahrenheit. 3. Diagnostics: Internal diagnostics for logging and documentation of upstream and downstream transducer performance. Diagnostics shall include signal strength, sound speed, Delta T, Signal quality, Amplitude, Normalization factor, and Signal Peak location