Features: Experience Precisions in heat energy measurement with our Ultrasonic Heat Meter, featuring ultrasonic for both hot and cold water systems. Crafted from brass with a clear liquid display, this heat meter ensures long and ease of reading, suitable for diameters ranging from DN20 to DN300. Suitable for homeowners, office managers, and facility operators look to Monitors and manage their heating expenses effectively. This Multifunction flowing meter is perfect for residential complexes, educational institutions, and commercial properties, providing accurate data for efficient energy use. Enhances your heating system's Performances with our reliable Ultrasonic Heat Meter, designs for easy installation and simple integration into existing pipelines. Specifications: Material: brass Calibers: 20mm/25mm(optional) Size: about 17x12x11cm Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Package includes: 1xUltrasonic Heat Meter