Non-contact Level Measurement

QDY70B measures liquid level from above the vessel using ultrasonic waves, so the sensor does not contact the medium. The transmitted sound pulse reflects from the liquid surface and returns to the instrument, allowing level to be calculated without a submerged probe. This approach reduces contamination between the sensor and the liquid and avoids corrosion or winding problems associated with contact devices. It is suitable for ordinary tanks, pools and water-storage applications that need a straightforward non-contact level signal.

Top-mounted Design, Easier Maintenance

The top-mounted design of QDY70B keeps the sensor accessible above the tank or pool. Routine inspection, wiring checks and replacement can be carried out from the mounting point without pulling a probe out of the liquid or handling a wet cable. This simplifies maintenance in applications where the vessel is deep or the liquid is inconvenient to contact. Easier access shortens service time, keeps the measuring point cleaner and supports more practical long-term use in standard level-monitoring projects.

Cost-effective Choice for Standard Level Projects

QDY70B provides a cost-effective non-contact option for tanks, pools and general liquid-storage projects. It is intended for standard applications that do not require the more complex capabilities of high-frequency radar but still benefit from avoiding direct sensor contact with the medium. The simple top-mounted measuring method reduces installation and maintenance effort while supplying continuous level information to the monitoring system. This makes it a practical choice for budget-sensitive projects that need reliable everyday level indication and control.