Check the listing for details. Ultrasonic Flow Meter Liquid Flowmeter TUF-2000B DN20~DN700mm Transducer Profess. Condition: New. Listed at 240.60 USD. Standard Packing: 1x Tuf-2000B Host 2x Steel Belts 1x TS-2 Ultrasonic Transducers(20-100mm) 1x TM-1 Ultrasonic Transducers(50-700mm) 1x 10 Meters Flow Signal Cable 1 Set Of Connection Terminal And Screwdriver 1x Silicone Sealants 1x User Manual Basic Parameters Main Unit Protection Level: IP67 Transducer Protection Level:IP68 Main Unit Working Environment: -20~60°C Transducer Working Environment: -30~90°C Humidity: ≤85%Rh Accuracy:≤1% Velocity Range: 0~±10m/s, Bi-Directional Measurement Suitable Pipe Diameter TS-2 Ultrasonic Transducers20-100mm TM-1 Ultrasonic Transducers50-700mm Temperature: -30~90°C Type Of Liquid:Single Liquid Can Transmit Ultrasound, Such As Water, Sea Water, Sewage, Oil, Alcohol, Etc.