Only in combination with the NT2 plate brake tester.
The P40 is an analogue display for the NT2 plate brake tester. It contains two pointers for the brake forces for the left and right wheel. The brake force difference left to right is indicated by means of LEDs.
Quick, Simple & Effective!
Brake force indication per wheel per axle.
Brake difference indication left to right per axle with LEDs: GREEN - YELLOW - RED.