Disassemble the micro high-pressure air pump movement,

It should be a tire inflation movement,

There are 2 specifications,

Are all disassembled,

Look at the nominal 7.4V of the motor housing,

It should be used with the original lithium battery,

The measured 3.7V power lithium battery can also be used,

Just inflate slowly,

The measured blocking pressure of 3.7V is about 0.7Mpa.

There is a pressure sensor on the air pump.

I didn’t know how to use it before,

The sensor welding wire is a bit broken and trimmed,

The pump movement has 2 specifications,

Some pressure sensors with pipes and some are directly installed at the pump head,

The quantity is not much, and it will be shipped randomly.

Pay attention to the positive and negative poles of the air pump wiring.

The pressure will decrease when the wrong direction is connected.

The movement weighs about 200 grams.