Electronic torque tester for torque wrenches, consisting of: transducer (patent)holderdisplay unit (registered design)tripod for display unit (with 1.5 m cable)spiral cablemains adaptor (110 V–230 V with interchangeable socket adaptors) or direct connection to 12 V in-car supply is possiblesquare drive adaptor (No 7707-2W, No 7707-2-1W, No 7707-2-2W, No