Abstract: A device and method for performing a diagnostic test, including determining presence or absence of antibodies to a virus. The device displays the results on a display, and includes a retractable needle and an enclosure that houses the retractable needle, a vessel for collecting or storing a bodily liquid sample collected from the subject, an enclosure containing a diluent fluid that is mixed with the collected sample, and at least one area for mixing and performing analysis. A pressure sensor checks for pressure being applied by the test subject's finger during the test, and stops the test or disables display if it does not sense pressure of the test subject's finger during testing. A processor performs identification testing by scanning a digital fingerprint of the test subject by a digital scanner prior to evaluation, stores the data and evaluates the test results to determine whether the results exceed or reach a threshold value.

Abstract: An indicator of solder wave soldering parameters includes a simulating board (10) of electrically insulating material provided with a plurality of electrical contact elements (11A, 11B . . . 18A, 18B) which are located on a first surface of the board (10) such that, when the board is passed by a soldering machine conveyor over a solder wave with the contact elements facing the wave, at least some of them will be immersed in the solder to different depths so as to form an electric contact between them, each of the electrical contact elements being associated with an electronic measuring circuit (31, 33) adapted to measure and record the specific depth and duration of the electrical contact between each such contact element and the solder wave thereby simulating the corresponding dwell time and specific depth of penetration of the solder wave into contact orifices of a real printed circuit plate.