Measuring apparatu convenient to stable observation

The utility model relates to a measuring instrument field, and disclose a measuring apparatu convenient to stable observation, including the caliber, the front and the equal fixed mounting in the backof caliber have the handrail, the bottom fixedly connected with montant of caliber, the fixed cover in inside that the bottom of montant extended to locating box is equipped with the gyro wheel, locating box's the equal fixed mounting in both sides has detent, locating box's bottom fixedly connected with levelling device, the bottom fixed mounting of levelling device has the supporter, the quantity of supporter is three, and the axle center symmetry of three supporter with the levelling device. This measuring apparatu convenient to stable observation through opening three bracing piece, supports the measuring apparatu through the supporting leg, rotates the bull stick and to boring the nail joint tread surface, steps on all deep underground of bull stick to awl nail down to make the measuring apparatu firm, avoid