Testing an AliExpress chronograph

Hi guys got a video here today on a chronograph from AliExpress, its pretty good, the app is a little basic but it seems to work as it should. I had to re calibrate my chronograph for it to be accurate to my master chronograph. But it seems to work fine.

https://www.aliexpress.com/item/1005007327811231.html

https://www.aliexpress.com/item/1005007352633426.html

Sekhmet gauges: 10% off
Code: "SUB12"

https://www.sekhmetonline.com/?ref=SUB12

Merchandise link:

https://personalised.clothing/sub12airgunners