Where should FINETEK EA ultrasonic level meter / level meter

Where should FINETEK EA ultrasonic level meter / level meter ultrasonic level meter operation principle of the detector can emit a strong sonic sonic pulse wave will be reflected back to the sensor head when the sound waves reach the surface of the material, the reflected wave via sensing head is converted into electrical signals, then sent ultrasonic controller, calculated by the controller sonic reflection transfer time, converted to material level or distance. Characteristics? Noncontact, from material properties (pressure, viscosity, specific gravity, pH) and other effects. ? Specifications of the most complete, 6M, 10M, 15M, 20M, 50M to choose from. ? Measurement accuracy of ± 0.25%, resolution of 2mm. ? Output have 2 lines, 3 lines and probe and indicator part ways. ? Beam angle is small, blind spots short distance, most suitable for small tankage or equipment. ? Output has RS232,485; 4 ~ 20mA or 20 ~ 4mA or relays. ? Power supply 110 / 220VAC or DC24V. ? Applicable to powders or liquids. ? A fail-safe function ensures that the echo signal without loss. ? Operating temperature -20 ~ 60 ℃, protection class IP-65.