Labtronic offers the experimental unit, ideal for calibrating electronic pressure sensors under practical conditions. Test pressure is generated using a piston manometer, where weight rings apply force on the piston to create a defined pressure. A hand-operated spindle relieves pressure post-measurement, allowing the piston to return to rest, while rotating the piston minimizes friction. This test pressure is applied to the diaphragm of a pressure sensor, with the pressure-dependent electrical output shown on a digital display. The sensor uses a ceramic measuring cell with piezo resistors forming a measuring bridge, evaluated by an amplifier circuit. The kit also includes a cutaway model of a second pressure sensor for clarity, all contained in a compact, user-friendly housing.