Modsonic Instruments Manufacturing Company Pvt. Ltd. Supplies Ultrasonic Flaw Detector with Wide Viewing Angle. Modsonic Instruments Manufacturing Company Pvt. Ltd. Is an ISO 9001 certified company. Modsonic Instruments Manufacturing Company Pvt. Ltd. Supplies ultrasonic testing equipment. Ultrasonic Flaw Detector with Wide Viewing Angle is provided with broad band amplifier 0.5 MHz to 15 MHz frequency. The rejection of Ultrasonic Flaw Detector with Wide Viewing Angle is 0 to 80% FSH with LED indication. Its model no. Is EINSTEIN - II TFT.