Our FEN Test Strip with a cutoff level of 200 ng/ml is a highly effective and sensitive tool for detecting FEN in urine samples. With the increasing prevalence of fen-related incidents, it is crucial to have accurate screening methods in place. Our test strip is specifically designed to provide reliable results, allowing for early detection and intervention. By utilizing advanced technology and a cutoff level of 200 ng/ml, our test ensures optimal sensitivity, enabling the identification of even trace amounts of FEN in urine samples.