Feature: 1. 2‑way reading error CW±2%, CCW±2.5%, CW and CCW can be applied to improve work efficiency. 2. Can switch freely among 4 kinds of torsion units: kgf.cm, N.M, lbf.ft, lbf.in 3. With sound and light alarm function and backlight function, convenient for operation at night or in places with insufficient light 4. There are 3 working modes: real‑time mode, peak mode and preset mode, which can be switched freely 5. The power supply is 2 AAA batteries, simple, convenient and very practically. Specification: Item Type: Digital Display Torsion MeterModel: ZNC-200 Minimum Graduation Value: 0.1N.M Maximum Operating Range: 6-200N.M Connector: 1/2 (the instrument comes with 1/2, and plus one 1/4 and 3/8) Torsion Accuracy: CW ±2%, CCW ±2.5% Battery Information: 2 x AAA batteries (not included) Product Description: The digital torsion meter is a torsion monitoring instrument with a ratchet wrench. It is used for various tightening and disassembly control forces. It has multiple functions such as simple operation, portable, multi-unit conversion, sound indication, and forward and reverse adjustment. Suitable for industries such as automobiles, bicycles, and various mechanical maintenance.. Package List: 1 x Digital Display Torsion Meter2 x Conversion Head (1/4 and 3/8)