My elbow clicks at 5 newton-meters and then again at every 5 n-m interval until my shoulder pops out of joint at 100.
But seriously, I got a $50 Craftsman 3/8" drive model about 20 years ago. It has handled every trike job I've ever needed. Only thing it doesn't do is go high enough for my truck lug nuts. Mine can be set at 1 ft-lb intervals.
The beauty of ATCs is that in the manual, it always give s a torque range (19-24 fps, for example), so you don't have to get them perfect. Just somewhere within the range. I normally err to the low side since I have a tendency to overtighten and strip. A cheap Harbour Frieght (or Canadian Tire) tool should serve you just fine.
Also worth restating, back it the whole way off to zero to completely unload the spring tension after each use. This is a safety concern too.