1. The lights and buzzer appears to only work using Newton-Meter (N-m) unit. If you select Inch-lb or other, the lights and the buzzer will not work. Yes, I then have to calculate the equivalent of say __ in-lb to __ N-m and set my required torque in N-m to see the lights and hear the buzzer. 2. The instructions state to \"long press U key\" to see a user menu (modes): oodE, SEL, dAL and CLA (similar characters), but what do they mean? Nowhere in the instruction give out the meanings of \"these modes\". Otherwise, the wrench seems to acceptably work. These were the reasons to rate it with just 3 stars.