What's BTU Meter?
BTU meters measure the energy content of liquid or gas flows in British thermal units (BTU), a basic measure of thermal energy.
One BTU is equal to the amount of energy needed to heat one pound of water one degree Fahrenheit.
BTU meters are used in chilled water systems(HVAC) for both commercial and industrial and office buildings. These meters are used to bill users for energy usage.
Inline and Clamp-on BTU meters(Ultrasonic heat meter) are easy to install and low cost, easy to collect the data for AMR.http://www.rbflowmeters.com/Applicantion-HVAC/