This Handheld Torque Tester features a compact, portable design with an accuracy of ±0.5% at rated output, supporting bidirectional torque and angle measurement. Its non-contact measurement allows a speed of up to 10,000 rpm. Ideal for hand tools, torque tools, and rotational measurement applications, it works with DF-series sensors covering a torque range of 1-500 Nm, meeting the testing needs of various tool specifications. It is an efficient device for on-site tightening quality verification (Note: Not suitable for pneumatic/electric impact tools).