You might want to consider a single value wrench. I have one, I think it is made by Ritchey. 4 N-m which seems to be the only value I really need. Small enough that I don’t mind bringing it along on some rides. Forget what it cost but I think around $15? Of course I have a regular torque wrench as well but I only need it if I need to do a torx (?) bolt but I replaced those with hex bolts.