A piezoelectric device includes a piezoelectric vibrating piece, a base plate, which has a connecting electrode on one principal surface and a mounting terminal on another principal surface, in a rectangular shape, and a lid plate. At least one end bracket and at least one side bracket are pivotably and translatably mounted to the base, wherein the brackets each have at least one support leg with a mounting end. The invention is particularly suited for use in point-of-care medical diagnostic testing. This is an additional safety feature that will get the attention of people outside the vehicle, indicating that a child is trapped in a dangerous environment inside the vehicle and needs help. The apparatus allows the operator to sense the speed at which the jetting hose and nozzle are penetrating the formation and adjust the coiled tubing feed-in rate accordingly, optimizing both the direction and length of the lateral borehole relative to the main wellbore.