Hall sensors are rarely used in magnetic field measurements for space environment among many types of sensors. Instead, sensors based on search coils or flux gate are commonly adopted. Because these two types of magnetic field sensors are rather often adopted, therefore, satellite missions for space observations are mostly in large-scale, so the cost is relatively high. However, because of the relatively low cost, small satellites are more conducive to development in laboratories of schools, so that designing on CubeSats is currently blossoming worldwide. As a result, the need to miniaturize payload instruments is growing. This study is to test the sensitivity and range of measurements based on various merchandisable Hall sensors to evaluate whether they can be applied as magnetic field instruments on CubeSats. These sensors are installed in a stable and uniform magnetic field environment in the experiments. We have examined six different types of analog Hall sensors which can be directly connected to the breadboard. We’ve found that the DRV5055-A1 sensor is the one with the highest resolution and A1309 sensor is the one with the smallest and uniform errors. However, as to measure Earth’s magnetic field environment via CubeSats, enhancement on the sensor’s resolution is still required. Therefore, we suggest that higher-bit demo boards or measure-range programmable Hall sensors may be further applied in order to achieve this goal.