Features:

1. Professional LSU4.9 oxygen sensor with LCD air-fuel ratio and temperature reading display instrument, portable and professional measurement of engine air-fuel ratio and gas temperature.
2. How to use: Connect the 2s battery cable, align the sensor to the engine exhaust port, you can display the air-fuel ratio and exhaust temperature reading.
3. Suitable for all types of engine models to measure air combustion ratio use, can be used as an interesting tool to DIY your engine model.

Materials:

Metal, electronic components

Weight:

300g

Packing list:

Oxygen sensor*1
Air-fuel ratio display meter*1