This document provides a catalogue of ultrasonic flow meters manufactured by the company. They are specialized in ultrasonic flow, water, and heat meters, and have achieved over 60% market share in China. The catalogue describes several product lines including: 1) handheld/portable ultrasonic flow meters, 2) fixed type ultrasonic flow meters available in multiple housing options, and 3) various sensor types including clamp-on, insertion, and inline sensors for measuring flow rate and temperature. Technical specifications are provided for each product line.