| 摘要 |
<p>Unit for permanently testing the functionality of a heating device comprises a probe installed in a waste air pipe or other possible sites on the device to measure the waste gas temperature after testing and setting with a nominal value. Preferred Features: The unit has one or more illuminating diodes or other display units. Deviation from the nominal value can be displayed using the diodes which show a signal from green via yellow to red in predetermined temperature deviations.</p> |
