Rocket Recovery: GPS devices

Secured in the nosecone, this is the GPS device that will help locate the bird after it has landed. It is a TK-102 GPS clone. You simply call the device and it returns the coordinates to your phone. You can then look that up on google maps on your ipad or laptop. It requires having a GSM SIM card inside. 

It weights only 58 grams and is small enough for H class rockets. 

Edit:

This only works if you have cellphone coverage. If you will be launching in the desert where there is no coverage then you will need one of these $400 devices

Knowing the Wind Speed: GO Launch or NO-GO Launch

It may not be crucially important to some to know how fast the wind is blowing right before launch, but for me it is very important as I dont have alot of recovery area to play with.

I stumbled upon this video that shows how to make an anemometer that can measure (roughly) windspeeds.

IF you have 25 bucks to spare you could simply get one of these:

HQRP Digital Pocket Anemometer Wind Speed Meter & Thermometer Handheld Weather Station Beaufort Wind Scale plus HQRP Coaster

Buy new: $23.91