XL2 Audio Analyzer. With the balanced XLR and unbalanced RCA inputs, the XL2 is a comprehensive audio analyzer. It simultaneously measures level, distortion (THD+N) and frequency.The internal loudspeaker or headphone is used for audible monitoring of the test signal or the residual distortion.L2 Audio Analyzer. With the balanced XLR and unbalanced RCA inputs, the XL2 is a comprehensive audio analyzer. It simultaneously measures level, distortion (THD+N) and frequency.
Leukocyte esterase is a screening test used to detect a substance that suggests there are white blood cells in the urine. This may mean you have a urinary tract infection. If this test is positive, the urine should be examined under a microscope for white blood cells and other signs that point to an infection.
Leukocytes in urine â causes. The causes of leukocytes in urine are as follows: Withholding urine for long durations can result in overstretching of the bladder, which can then cause the bladder to become increasingly weak. A weak bladder may not be able to discharge urine completely leading to left over urine.