It talks to a phone, and it logs
Voltcraft Bluetooth, data export, logging, TRMS, three decimal places
A plug-in energy meter with Bluetooth, data export and logging, true RMS measurement and an LED ring that changes colour with the measured load.
Specifications
- Measurement range
- Nowhere in the listing
- Low-load accuracy
- Power consumption and power factor measured and displayed to three decimal places, first bullet
- Maximum current
- Nowhere in the listing
- Displayed values
- Power consumption and power factor; an LED ring changes colour with the measured power, from deep green to red, second and fourth bullets
- Memory retention
- A data logger function with export, from the title — the only plug meter in this family that logs
- Tariff calculation
- An electricity tariff setting, from the title
- Socket type
- Bluetooth interface with apps for Android and iOS, from the title and the third bullet; true RMS measurement
- Amazon reference
- B076BX5QG6 (same reference on 5 Amazon marketplaces)
- EAN
- 4016139196763
A plug meter that produces a file.
Logging
The distinguishing feature. Six plug meters in this family show a number; this one records a series and exports it.
That changes what the question can be. A total tells you what a week cost. A log tells you when in the week it happened — which hour, which cycle, which appliance kicking in at three in the morning.
True RMS
Named. Electronics, dimmers and inverters draw current that is nothing like a clean sine wave, and an averaging meter reads those low. True RMS measures the heating value that is actually there.
Three decimal places
Power and power factor both. That is fine resolution for a plug meter, and it suits the logging: a series of readings is only as good as its smallest step.
The LED ring
Deep green to red with the measured power. Not a measurement, a glance — and from across a room it is the only meter here that can be read without walking over.
The dependency
Bluetooth and an app, for Android and iOS. The readings are on the meter; the log and the export are in the app. An app that stops being maintained takes that half with it.
The lines this listing leaves blank
A measurement range. A maximum current. Two figures every other meter here gives in some form.
Availability
German, French and Spanish Amazon stores quoted 26 € to 40 € when this page was compiled.
British Amazon store carries it too, priced in its own currency, which the euro range above deliberately omits.
Italian Amazon store wanted more than 1.6× what the cheapest country wanted. A margin that wide usually means stock shipped in from elsewhere rather than a seller on the ground, so that quote stays out of the range above.
American Amazon store returned nothing at all, so the buy button there runs a search instead of landing on an empty page.
These figures are what Keepa reported on the day this page was last updated. Availability and pricing move without notice.
Prices quoted in this text were read on 16 September 2026. The live price is at the top of the page.
