It doesnt look certified but it isnt cheap. I hope thats ok.
The range is fine, you'll probably only use settings between 4Nm and 12Nm, the important thing is that when you set it to 4Nm the true output is somewhere near that, but it doesn't need to be within single digit percentages.
The range is fine, you'll probably only use settings between 4Nm and 12Nm, the important thing is that when you set it to 4Nm the true output is somewhere near that, but it doesn't need to be within single digit percentages.