Single-phase active power meter for AC mains Key specifications - Voltage test range: 80–260 V AC, 50/60 Hz - Current test range: 0–100 A - CT (current transformer) inner diameter: 15 mm (0.6 in) - Measures real power only; does not display apparent power What this product does - Real-time measurement of active power for single-phase circuits - CT-based sensing provides safe, isolated current measurement - Compact design suitable for installation in domestic or light-industrial setups Important usage note - If measuring power from a DC-AC inverter, ensure the inverter output is a pure sine wave. Non-sine wave waveforms can cause damage, including burning or melting the meter Overload alert - Built-in overload alarm with a backlight and display flicker prompt when the power threshold is exceeded Why you need it - Quickly verify real power consumption of a single-phase load to manage energy use, budgeting, or protect equipment - Clear, immediate warning when loads exceed safe levels, helping prevent damage Practical scenarios - Monitor the actual power draw of a window air conditioner, space heater, or other high-load device - Check the real power consumption of a computer workstation, server, or other equipment with a DC-AC inverter - Assess load on a small solar or off-grid inverter feeding a single-phase circuit Notes on compatibility and performance - Suitable for 80–260 V AC systems at 50/60 Hz - Real power only; if you need apparent power, this meter does not provide it - Ensure the input source from inverters is pure sine wave to avoid damage