1 pcs 3 pyro output Model rocket altimeter and data logger.  Allow parachute deployment event based such as apogee, main parachute, timer etc ...

The board uses an atmega328 so it can be programmed with the Arduino environment
Source code is available so that program can be changed 
Dimensions: 30mmx80mm and approximatly 25 to 30grams

You will need an Android device with bluetooth to configure it and retrieve the data

A 2S lithium battery is recommended to operate it.

With the addition of long range telemetry modules (not included)  it can do talking telemetry

https://www.youtube.com/shorts/ZyVgY0gBTUY

I can provide documentation on request

the package contains the board + a usb cable + a bluetooth module + phone USBC adapter