The Pololu Magnetic Encoder 12 CPR, 2.7-18V,4760 is an electronic part that consists of two standard Hall effect sensors and two M4 disc magnets. It features 12 counts per revolution (CPR) resolution, and it is powered by 2.7-18V DC. It also includes an on-board regulator, allowing for the input voltage to be between 2.7 and 18V, and provides an adjusted, stable output voltage of 3.3V for powering the Hall effect sensors. The output signals are available through the power leads for easy wiring, and the solder tabs allow visitors to securely attach the device to a board without the need for soldering.