3. What Are the Key Features of the WM9100 Series Ultrasonic Water Meter?

4. What working environmental conditions can the WM9100 series ultrasonic water meter adapt to?

For ambient environment, its operating ambient temperature ranges from ‑40 ℃ to +70 ℃, relative humidity up to 100%RH. The protection class reaches IP68, so it can work for a long‑time under water, suitable for buried installation in water wells and wet manhole environments. Max working pressure is 1.6 MPa for DN15‑DN150; for DN200‑DN300 large‑size meters, the maximum working pressure reduces to 1.0 MPa. Temperature class is T30 as standard, T50 is optional for residential models. In terms of environmental compatibility, it meets climatic & mechanical environment Class O and E2 electromagnetic compatibility requirements, which enables stable operation under complex outdoor interference conditions. Please note that the meter complies with drinking‑water sanitary standards for potable water measurement, it is intended for clean drinking‑water, not for heavily polluted sewage.

5.Radar Level Meter VS Ultrasonic Level Mete

Both radar and ultrasonic level meters are mainstream non-contact level measuring devices, but they have essential differences in working principle, environmental adaptability and applicable scenarios:

A Working medium difference: Radar meters adopt electromagnetic microwaves, which can transmit without air medium; ultrasonic meters rely on air-conducted sound waves, and vacuum or dense steam will cause measurement failure

B Environmental resistance difference: Radar meters can resist high temperature, high pressure, foam and heavy dust interference; ultrasonic meters are easily affected by temperature changes, steam, foam and dust, resulting in data drift or failure.

C Measurement accuracy difference: Radar level measurement has higher precision and more stable data; ultrasonic accuracy is limited by on-site air environment, with relatively larger error in complex conditions.
D Applicable scenarios difference: Ultrasonic meters are suitable for conventional, stable and low-interference scenarios such as ordinary water tanks and sewage pools; radar meters are dedicated for harsh industrial scenes such as chemical reaction kettles, oil storage tanks and high-temperature vessels.
E Cost difference: Ultrasonic level meters are cost-effective for conventional monitoring; radar meters have higher cost but stronger comprehensive performance and longer service life.

6. Why Radar Level Sensors Outperform Traditional Level Measurement Solutions?

80 GHz Radar Level Meters outperform traditional level measurement solutions in multiple critical aspects. Unlike ultrasonic meters that rely on sound waves traveling through air, radar uses microwave signals unaffected by temperature shifts, steam, foam, condensation or heavy dust, delivering consistent readings in harsh industrial environments.

Equipped with compact narrow‑beam antennas, these sensors offer high accuracy of ±2 mm and a measuring range up to 120 meters, suitable for liquids, corrosive media, sanitary fluids as well as powders and granular solids. Requiring no tank filling or emptying for calibration, they feature easy commissioning and virtually maintenance‑free non‑contact measurement. Supported by explosion‑proof certifications, IP65/IP67 protection and dual HART / Modbus outputs, they provide reliable long‑term performance for complex process conditions.

7. The Application of LRD Series 80GHz Radar Level Meter