EZCheck 3 cassette reader is a palm-sized and lightweight reader. Through the 2D barcode on the cassette, the reader will automatically interpret which tests are performed. Through the App on smartphone, user can directly connect the device and can open the operation guide at any time and follow the graphical interface to complete the step by step operation. Follow the operation guide, the only thing user needs to do is finish the preparation procedure, put the cassette into EZCheck, and start the test. The test results of 3 targets will then produced within 5-15 minutes at one time and automatically uploaded to mobile App.