Norbar tru check is for click type torque wrenches and comes with a single measurement unit nm or lbfft there is only one button on the device and that is to zero the display so tru check is easy to use even for a complete novice eliminating the potential for incorrect tool setting and consequently tool failure features electromagnetic compatibility emc directive in conformance with en 613261997 specification accuracy 1 1 digit over the stated operating range display 4 digit 7 segment led wi