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.
Finding White Blood Cells in urine. Increased number of White Blood Cells (WBCs) in urine signifies inflammation or infection. Medically, presence of WBCs in urine is called pyuria or pus in urine. White Blood Cells (also called leukocytes) are important part of your immune system.