This triple-axis accelerometer? now have an on-board 3.3V regulator – making it a perfect choice for interfacing with a 5V microcontroller such as Arduino.
The product measures acceleration with a minimum full-scale range of ?3 g.
The analog outputs are Ratiometric, i.e, 0g measurement output is always at half of the 3.3V output (1.65V), -3g is at 0v and 3g is at 3.3V with full scaling in between.
This includes 3 analog outputs for X, Y and Z axis measurements, 2 supply pins and a self-test pin which allows you to check the functioning of the sensor in the final application.