SW-21 has been approved for both Explosion-proof Certifications (Flameproof Enclosure: Ex d IIC T6 Gb and Intrinsic safety: Ex ia IIC T6 Ga). Jiwei holds a utility patent (NO. 201821348285.8) on SW-21.

In Uson series Ultrasonic Level Transmitters, microprocessor program control technology and intelligent signal processing technology are employed to provide highly efficient and accurate measurements.

The transducer and transmitter of Uson-31 Ultrasonic Level Transducer can be installed separately. Design for real-time monitor of liquid level measurements, with high precision, reliable performance, durable life, convenient installation and free maintenance.