The document provides information about the Superstatic 449 heat meter, including its technical specifications and measuring principle. The Superstatic 449 is a compact heat meter that uses a unique fluidic oscillation measuring principle to precisely and reliably measure thermal energy flow rates from 0.6 to 2.5 cubic meters per hour. It is a split device with a detachable multifunctional integrator that allows for flexible installation and integration into various building management and smart metering systems. The measuring principle involves directing the fluid through a nozzle to create an oscillating jet, and using a piezoelectric sensor to convert the pressure pulses from the jet into electrical pulses to determine flow rate.