sainsmart small gsm gpr connection

hi there :slight_smile: for a schoolproject i am making a gps tracker. to know where my gps is there is a gms module wich will send the nmea sentecens when i send a sms. the problem which i now have is that i must have ordered a sim 900a gsm shield instead i ordered a sainsmart small gsm gpr

how should i connect my gms module to an adruino uno?

A link to the product would help.

In general, connect Rx -> Tx, Tx -> Rx, you may need a level shifter because many of the cheap devices don't have them built in. Applying 5 volts to a pin that is expecting to receive 2.8 volts won't do it any good.