... fan Swing Pendulum EY10 Elmendorf Tester is an Low-power Elmendorf tearing strength tester, fully standards-based fan ... precision optical sensor, Automatic pendulum weight detection,, USB port low-voltage power supply, the maximum range 128N testing capabilities, ... and visible and audible indicatorsHi-resolution digital encoderLow-power design,USB interface power supply.Design of the high range,Select ...