All of the components installed in the central PC board concentrated. Shock, set-up, electron tubes, all of them are insulation vacuum, sealed stereotype protection.
Different exposure times are preset for adults and children. The battery is durable, it can take about 4 hundred images after fully charged. Exposure time:0.1-2.0S. Distance from skin to cone:105mm.
Tube focus:0.8mmx0.8mm. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies.