UPS 150 FB ... Sensor with particularly small detection beam for narrow conditions		UPS 150 CP ... Sensor in chemically resistant version for aggressive environment

Data sheet PDF:
UPS Special

UPS 150 FB ... The ultrasonic sensors series UPS FB (FOCUS Beam) are equipped with a focusing device made of glass-fiber reinforced polypropylene, which makes the sound beam particularly narrow. Therefore they are suitable in the near range up to 150mm to watch into narrow cavities. A typical application is measuring of liquid level in small tubes or containers.

Typical application:   Level measurement in test tubes.   Depending on the distance between sensor and tube and depending on the tube length as well, level measurement in smallest cavities with diameters so small as 6mm is enabled.