CDI 2502-I-ETT 3/8" Drive Electronic Torque Tester, 25-250 lb guitar amp 40 mm multi-dot scope with

40 mm multi-dot scope with integrated 7/ 8 " mounting system requires no rings

which has a life span of approximately 90 hours

That means virtually NO sound coloration on or off axis

Image clarifier control

CDI 2502-I-ETT 3/8" Drive Electronic Torque Tester, 25-250 lb guitar amp 40 mm multi-dot scope withThe CDI 2502 I ETT Electronic Torque Tester has a 3 8 Inch Drive and can test between 25 250 In lbs or 28 280 dNm. Unlike a torque calibration system, which can be used to generate a torque wrench certification, the ETT is a portable, battery powered stand alone torque tester. It can also be used on AC power. Its primary use is to check the accuracy of dial and click type torque wrenches and torque Screwdrivers to maintain their accuracy in between