The Class 1-4 Test Jig is a Norbar designed torque verification unit.

This unit is used to give pre-dive surface confirmation of the torque tool calibration. It consists of a standard ISO class 1-4 torque reaction bucket with study base and built-in torque sensor. The Test Jig Transducer system is delivered as a complete kit. (Instrument / Load cell + Test Jig). The verification unit are calibrated once a year. The accuracy is class one. (+/-0,5% of reading from 20 to 100% of full scale).