Ultrasonic heat meter 1. Communication mode: infrared, M-BUS, RS-485 2.Degree of protection: IP67 3. Accuracy class: Class 2 Ultrasonic heat meterMain technical indicatorsInstallation method: installation in any angleMeasuring range of temperature: 5 to 90°CTemperature difference: 3 to 60KTemperature difference: 0.001°CThermal units: GJ, MJ, KWH optionalCommunication mode: infrared, M-BUS, RS- ...