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• Bởi zjanusz 24/09/2015 Bez przeróbek mierzy dwuprzewodowo (zasilanie pobierane z mierzonego napięcia) od 3,5V do 29,9V. Powyżej 29,9V pokazują się poziome kreski i świecą wszystkie kropki. Aby przerobić na zakres od zera trzeba wylutować diodę oznaczoną S4 (czarny sześcianik) i w miejscu kontaktu plusa diody przylutować oddzielny cienki przewód do zasilania stabilizatora napięcia (oznaczenie 7133H) osobnym napięciem dodatnim względem masy (czarny przewód) w granicach od +3,5V do +30V. Mierzone napięcie
• Bởi MichiganMike 18/11/2017 This meter is quite nice. I had to calibrate almost all of these meters I bought. Once calibrated they were fairly accurate. The LEDs were not seated on any of the circuit boards. I was able to desolder the LEDs and resolder them so that they were properly seated. Very good value overall. I noticed that there was a location for a third wire. I traced the circuit and realized that if the zero jumper was removed and a third wire was added, it was possible to measure voltages down to zero. Please look