"Ultrasonic heating and cooling energy meters to measure flow and energy in hydronic heating or refrigerant circuits. Available as heat, cooling energy, or combined heat/cooling energy meters Separate acquisition of heating or cooling energy by the combined heat/cooling energy meters, with automatic changeover Non-wearing due to non-moving parts Approved in accordance with EN 1434 and MID accuracy class 2 Any mounting position (horizontal or vertical), in return Measuring range of flow 1:100 as per EN 1434, 1:1,000 total range Choice of communication modules and power supplies Upstream or downstream setting paths are not required Optical interface as per EN 62056-21 Self-diagnostics"