This 22mm round AC mini digital voltmeter/ammeter indicator is a compact, dual-LED panel meter designed for real-time monitoring of voltage (
20−500V20 minus 500 V20−500V) and current (
0−100A0 minus 100 A0−100A). It fits standard 22mm pilot light holes, commonly used in electrical panels for machinery or distribution boxes. These units include a transformer coil for measuring current without breaking the circuit.
Key Features and Specifications
- Dimensions: 22mm mounting diameter, compact round design.
- Measurement Range: Typically AC 50−500Vcap A cap C space 50 minus 500 V𝐴𝐶 50−500V (or 60−500V60 minus 500 V60−500V) and 0−100A0 minus 100 A0−100A.
- Display: Dual-color LED display (often Red/Green or Red/Blue) indicating voltage and current simultaneously.
- Power Source: Self-powered directly from the AC voltage it is measuring.
- Installation: Involves wiring the voltage input in parallel and passing the load wire through the included current transformer.
- Usage: Suitable for 50−60Hz50 minus 60 Hz50−60Hz AC mains power; generally not suitable for inverter or modified sine wave circuits.
- Colors available: red, blue and white
