I'm considering purchasing a digital torque adapter, so I can measure torque with my current ratchet wrenches. I find it curious that almost all the adapters have a minimum setting of around the 20 ft/lbs; only a few start about 10 ft/lbs. At least that's what their listings say on Amazon, however, seeing the package labels, they don't talk about the minimum but the maximum, for example: Performance Tools M206 says 150 ft/lbs. max.
The engine I'm rebuilding has torque settings ranging from 18 to 88 ft/lbs. So a 10-150 wrench will suffice... but what about 10-150 torque adapters? I don't get why a digital device like those, can't read from zero up to the max. 0-150 instead of 20-150?