The TDS-100F series fixed split type ultrasonic flowmeter is widely used for online flow measurement of various liquids in industrial sites (with a built-in 15 version motherboard). The host is divided into wall mounted standard type, wall mounted explosion-proof type, disk mounted type, and local display type (F4 type host is a new product in 2009, with 18 built-in motherboards); Sensors are divided into external attachment type, insertion type, pipe segment type, etc.