When pressed, as shown in FIG. 6B, the lever portions 314 and 316 may move close to the body 312 in the third direction, and as shown in FIG. 8A, at least a portion thereof may be received in the receiving space together with the body 312. Thereafter, when the applied pressure is removed, as shown in FIG. 6A, the lever portions 314 and 316 may move away from the body 312 in the third direction, and as shown in FIG. 8B, the latching protrusions 314M and 316M may be latched to the hook-shaped gaskets 410 and 420. When the latching protrusions 314M and 316M are latched to the hook-shaped gaskets 410 and 420, the cell-monitoring connector 300 may monitor the state of each of the cells included in the unit group of the fuel cell. Here, the state that is monitored may refer to the performance and failure of each cell, e.g. the voltage of the corresponding cell.
