Voltmeter Ammeter

Item arrived on time no damaged to component. Good quality product, when installed on customers machine it worked very well, the client was very happy with the result, and was able to operate his equipment much better. I would do business again with this Seller.

Using this item on my Hi-Fi distribution board to monitor its load. Was a bit sceptical on how accurate this item would be but after testing using my Fluke multi meter I was surprised with the results. The voltage was with in 1 volt of each other and the currant on several tests came within 100 ma. Very impressive. The display is bright and clear with voltage in red and currant in green. A round version would be a good alternative as drilling a hole would make for an easier installation. Highly recommended.

Frequency very accurate when compared to a mains frequency live source It seems to display things like this: Anything between 50.00 and 50.09 Hz will read 50.0, anything between 50.10 and 50.19 will read 50.1. etc etc. Great purchase. Very pleased. Voltage agrees within 1 volt of my Multi Function Tester.

it just works.

Just what I needed

Exactly what I thought it was and works well. Delivery was prompt.

Great peoduct good quality well made

It went faulty after 2 days not impressed

Easy and simple Works well

Fonctionne très bien , pratique pour voir la consommation de ses appareils . l'anneau est sur la phase sur l'arrivé de façon à voir la consommation tu tableau entier

Ich bin erstaunt, was diese kleine Teil leistet. im Vergleich mit einem Präzisonsmultimeter (4-stellig im Wechselspannungsmessbereich) zeigt der KETOTEK Spannungsmesser gerundet (weil 3-stellig) nahezu den gleichen Wert. Die Abweichung betrug maximal 1V. Die Anzeige ist im Vergleich zum Multimeter etwas verzögert (Delay ca. 0,5s) . Die vom Hersteller angegebene Messunsicherheit (Genauigkeit) von +- 2% (~= +- 4,6V) wird lässig eingehalten. Gleiches gilt für die Frequenzmessung. hier zeigt mein Gerät meist 49,9Hz an. Die Energieaufnahme des Gerätes im Betrieb liegt bei 0,4W bis 0,5W. Das ist selbst für mich als überzeugtem Energiesparer absolut ok. Das kleine Teil kommt jetzt in ein kleines ABS Gehäuse mit Eurosteckerkabel, überall flexibel einsetzbar. Das war ein guter Kauf. Gruß Dork

Fonctionne très bien

Questo piccolo strumentino da pannello, è un comunissimo voltmetro con display a segmenti, da pannello per tensioni alternate. Unitamente al tradizionale voltmetro, integra la lettura della frequenza in Hz della stessa tensione. Testato con un multimetro professionale, i valori rilevati sono veritieri e non sballati. E' semplicissimo da collegare, infatti si collega in parallelo alla linea in AC, ed il gioco è fatto. La lettura della tensione avviene su display di colore rosso, mentre quelli della frequenza sono di colore verde. Lo strumentino è autoalimentato dalla stessa tensione che si vuole leggere. Il range della tensione va da 80 a 300 volts in AC, mentre il valore della frequenza è compreso tra i 45 ed i 65 Hz.