Digital Panel Voltmeter & Ammeter – Simultaneous AC Voltage and Current Monitoring
When you need to keep a close eye on your electrical panel, you shouldn’t have to choose between monitoring voltage or current. This 60–500V / 0–100A digital AC meter displays both simultaneously on a crisp, high-visibility LED screen. Designed to fit a standard 22mm panel cutout, it offers a seamless, no-compromise solution for your monitoring needs.
Note: This device is designed exclusively for Alternating Current (AC) systems. It is not compatible with DC circuits. For maximum accuracy at low current levels, we recommend looping the phase wire through the current transformer coil 3–5 times.
Why choose this model? (Key Advantages):
- Simultaneous Dual Display — View voltage and current at the same time; no switching required, saving you time and preventing reading errors.
- Versatile Range — With a 60V–500V and 0–100A range, it is perfect for everything from standard 230V residential circuits to industrial three-phase applications.
- High-Visibility LED — The bright display remains clear and easy to read, even in dimly lit electrical cabinets or from a distance.
- Compact 22mm Mounting — With a 31×31 mm faceplate, it is ideal for tight spaces where panel real estate is at a premium.
- Non-Invasive Current Sensing — The phase wire simply passes through the magnetic current transformer coil, meaning you don’t need to cut or modify your existing wiring.
- Adjustable Precision — For low-current applications (under 10A), looping the wire through the coil 3–5 times significantly increases sensitivity and accuracy.
Performance and Specifications
This module integrates an AC voltmeter and an ammeter with a current transformer into one compact housing. The L and N terminals provide internal power and measure line voltage, while current is detected non-invasively via the magnetic ring. The signal is processed instantly and shown on the high-brightness LED screen, ensuring readability even in challenging lighting conditions.
| Parameter | Value / Detail |
|---|---|
| Voltage Measurement Range | 60 – 500 V AC |
| Current Measurement Range | 0 – 100 A AC |
| Compatible Network | Alternating Current (AC) only |
| Display Type | High-brightness LED |
| Panel Faceplate Size | 31 × 31 mm |
| Mounting Hole Diameter | 22 mm |
| Housing Colour | White |
| Current Sensing Method | Current Transformer (magnetic ring, non-invasive) |
| Recommended Loops for Accuracy | 3 – 5 turns (for low current) |
Installation Guide
- Drill or cut a 22 mm diameter hole in your electrical panel and insert the meter module.
- Connect the Phase (L) wire of the supply to the L terminal.
- Connect the Neutral (N) wire of the supply to the N terminal.
- Pass the load’s phase wire through the magnetic current transformer coil. For currents under 10A, perform 3–5 loops through the coil for maximum precision.
- Connect the end of the phase wire to your load, and connect the load’s neutral wire directly to the supply neutral.
- Power on the circuit — the LED display will instantly show the real-time voltage and current.
Package Contents
- 1 × Digital AC Voltmeter/Ammeter 60–500V / 0–100A with white housing
Frequently Asked Questions
Does this work with Direct Current (DC)?
No. This device is strictly for AC systems. Connecting it to a DC source may damage the module and result in inaccurate readings.
Do I need to cut the phase wire to install it?
No. The wire simply passes through the magnetic current transformer coil. The circuit remains intact, making the installation completely non-invasive.
Why should I loop the wire through the coil multiple times?
Each additional loop amplifies the detected magnetic field. For low currents (under 5–10A), 3–5 turns will significantly improve the accuracy of the displayed reading.
Can I use this to monitor standard 230V household appliances?
Yes, absolutely. It works perfectly on standard 230V single-phase networks, provided the load does not exceed 100A.
What size hole do I need for the panel?
You need a 22 mm diameter circular hole. The module faceplate measures 31 × 31 mm.
Photo Gallery
***l* P******* ***e* –
Very bright display, easy to read even from a distance. Helpful for monitoring my home workshop’s power draw.