ETL (Tianjin) Science & Technology Development Co., Ltd.  headquartered in northern China's largest international port city – Tianjin, is a high-end equipment manufacturing company, developing and producing various types of geophysical hydrophones, data transmission cables and related equipments.

We have rich technology and experience of marine operations and offshore oil exploration, we are also professional suppliers of equipment applied on beach, shallow sea and transition zone .Our OBC dual-sensors and hydrophones applied on geophysical exploration possess international advanced level. We are well-equipped, skilled, accurate and dedicated to providing clients with top ranking technology and service in the world.

  Focus on equipment of transition zone in water area.  Because of our attention on it, so we are professional!