3-in-1 Digital LED Indicator: Voltmeter, Ammeter, Frequency, Red
Available in stock
| Quantity | Price per unit | You save |
|---|---|---|
| 1–2 pcs | 3.200 Ft | — |
| 3–4 pcs | 3.040 Ft | 5% (−160 Ft/unit) |
| 5–10 pcs | 2.880 Ft | 10% (−320 Ft/unit) |
| 11+ pcs | 2.720 Ft | 15% (−480 Ft/unit) |
3-in-1 Digital Indicator for Voltage, Current, and Frequency Monitoring
This digital LED indicator simultaneously displays AC voltage, current, and mains frequency, making it ideal for distribution boards, automation panels, or checking industrial and domestic installations. It comes complete with an included CT transformer coil, ready for mounting in standard 22mm openings. The red LED display is visible from a distance, even in bright conditions.
What you get with this product
- Complete real-time monitoring — see voltage, current, and frequency on a single compact display
- Excellent visibility — powerful red LED, readable from a distance even in bright sunlight or darkness
- Quick installation — mounts in a standard 22mm opening, simple connection with included CT coil
- Comprehensive measurement — voltages up to 500V AC and currents up to 100A, with frequency detection 20-75Hz
- Preventive protection and diagnostics — quickly identify voltage fluctuations or overloads before problems arise
- Complete kit — indicator, transformer coil, and plugs included, no additional purchases necessary
How it works and how to install it
The indicator measures AC voltage directly from the mains, and current via the CT coil which is mounted on the phase conductor. The LED display continuously updates the values, allowing instantaneous monitoring of electrical parameters. Installation is done by inserting the indicator into the 22mm opening in the electrical panel, connecting the voltage cables, and passing a conductor through the CT coil. Basic knowledge of electrical engineering is required — if you are not familiar with working in electrical panels, call a certified electrician.
Frequently Asked Questions
Can I install it myself or do I need an electrician?
If you have experience working with electrical installations and comply with safety regulations, you can install it yourself. Otherwise, it is recommended to call a certified electrician for interventions in the electrical panel.
Does it display all 3 values simultaneously or one by one?
It displays all three values simultaneously on the LED screen — voltage, current, and frequency are visible at the same time, without switching.
Is the CT transformer coil included in the package?
Yes, the CT current transformer coil is included along with the indicator. You have everything you need for complete installation.
Technical Specifications
| LED Color | Red |
| Voltage Measurement Range | AC 60 - 500V |
| Current Measurement Range | 0 - 100A |
| Frequency Measurement Range | 20 - 75Hz |
| Mounting Diameter | 22mm |
| Display Dimensions | 31 x 31mm |
| Included Accessories | CT transformer coil, connectors |
| Package Contents | 1 x Digital Indicator, 1 x CT Coil |
| EAN | 0781499721828 |
Warranty and Support
The product benefits from a 2-year warranty in accordance with Romanian legislation. Right of return within 30 days of receipt. Fast delivery by national courier throughout Romania.
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