The ±7g Triple Axis Accelerometer MicroSensor is a precision 3 axis accelerometer that constantly measures change in acceleration in the X, Y and Z axes. The G-Force meters for RC models. The low G sensor measures up to 8g (at least 7g) in each of the 3 axes. For standalone mode, simply plug the sensors into a spare receiver channel or small battery (4V to 6V) and fly your model. Then, when you land, your maximum acceleration (G's) will display on the built-in 7 segment LED. No configuration, additional equipment or computer required.