The HMP1 born as electronic body throttle tester.
But early grown new functions without loose a friendly usage.
Thanks to the screen you can have a easy read of the sensors data.
With a Heavy Duty manufacture for a long lifetime.
Also known as a Lambda probe, it is a sensor that measures the state of the fuel mixture.
It is understood as rich when the proportion naphtha: air indicates that there is more naphtha than required, and is understood as poverty when the proportion naphtha: air indicates lack of naphtha (excess air).
Normally during the operation of the motors this value goes up and down from 0.2v to 0.8v once or twice per second.
1) Connect a test cable to the TPS1 input of the device. But do not make contact with anything.
Care: make sure that no more than 5v enter before the test
2) Connect the 12v and wait for the menu to appear on the screen. 3) Press the "+" and "-" buttons until you see written "Lambda".
4) Press OK and the measured voltage will appear on the screen.
