A Hall sensor device system, comprising: two sensor chips, one sensor chip being a directional Hall speed sensor chip and the other sensor chip being a non-directional Hall speed sensor chip, the two sensor chips comprising a total of four pins, wherein each chip in the two sensor chips comprises a power supply end pin and a signal end pin; a shell, wherein the two sensor chips are encapsulated in the shell, the four pins of the two sensor chips are electrically connected to four conductive terminals in the shell including a first conductive terminal, a second conductive terminal, a third conductive terminal and a fourth conductive terminal from top to bottom, respectively, and the four conductive terminals are divided into a first group of conductive terminals including three of the conductive terminals and a second group of conductive terminals including the remaining conductive terminal; four output pins, wherein the four output pins are electrically connected to the four conductive terminals; and a bridge including a removable clamping element provided with at least two clamping pins, wherein the bridge is suitable for electrically connecting the second group of conductive terminal with one conductive terminal in the first group of conductive terminals, such that the power supply end pins of the two sensor chips respectively or the signal end pins of the two sensor chips respectively are connected by the bridge, wherein the Hall sensor device system makes a first Hall sensor device when the first group of conductive terminals includes the first conductive terminal, the second conductive terminal, and the third conductive terminal and a second Hall sensor device when the first group of conductive terminals includes the second conductive terminal, the third conductive terminal, and the fourth conductive terminal. two sensor chips, one sensor chip being a directional Hall speed sensor chip and the other sensor chip being a non-directional Hall speed sensor chip, the two sensor chips comprising a total of four pins, wherein each chip in the two sensor chips comprises a power supply end pin and a signal end pin; a shell, wherein the two sensor chips are encapsulated in the shell, the four pins of the two sensor chips are electrically connected to four conductive terminals in the shell including a first conductive terminal, a second conductive terminal, a third conductive terminal and a fourth conductive terminal from top to bottom, respectively, and the four conductive terminals are divided into a first group of conductive terminals including three of the conductive terminals and a second group of conductive terminals including the remaining conductive terminal; four output pins, wherein the four output pins are electrically connected to the four conductive terminals; and a bridge including a removable clamping element provided with at least two clamping pins, wherein the bridge is suitable for electrically connecting the second group of conductive terminal with one conductive terminal in the first group of conductive terminals, such that the power supply end pins of the two sensor chips respectively or the signal end pins of the two sensor chips respectively are connected by the bridge, wherein the Hall sensor device system makes a first Hall sensor device when the first group of conductive terminals includes the first conductive terminal, the second conductive terminal, and the third conductive terminal and a second Hall sensor device when the first group of conductive terminals includes the second conductive terminal, the third conductive terminal, and the fourth conductive terminal.