We offer a wide range of BTU Meter, Orifice Flow Meter, Ultrasonic Flow Meter and Flow Indicator Totaliser that is used in chilled water, condenser water, and hot water systems for both commercial and industrial buildings. These Commercial BTU Meter and Industrial BTU Meter include: temperature range, environment or flow temperature, temperature sensor type, differential temperature accuracy, battery life, working current, and hibernating current. Dimensions such as length, width, and weight are also important to consider. There are several different temperature ranges for Commercial BTU Meter and Industrial BTU Meter System.