Features: <br> <br>Compact shape and lightweight, portable to carry and use. <br>It can measure and show voltage, the measuring range is 50HZ/60HZ 70-380V AC. <br>The voltage meter uses 0.56inch 3-digit LED display, clear to read. <br>There are 2 wires for zero line and firewire, easy to connect, can test directly and no need of power supply. <br>Widely used for AC 220V mains electricity test, voltage monitoring of 220v generator and inverter, and other AC circuit voltage test. <br> <br>Specification: <br>Measuring Range: 50HZ/60HZ 70-480V <br>Input voltage 70-480 (V) <br>Output voltage 70-480 (V) <br>Measuring range 70-480 (V) <br>Operating current: <30mA <br>Measurement rate: 200mS/ time <br>Measurement accuracy: 3% <br>Working temperature: - 10 ~ + 65 ℃ <br>Working humidity: 10-80% (no condensation) <br>Size: Approx. 80x45x27mm / 3.15x1.77x1.06in <br>Mounting opening: 75x39.5mm / 2.95x1.57in <br>Size: Approx. 4.5*3cm/1.8*1.2in <br>Weight: Approx. 40g <br>Options: Red Digit, Yellow Digit, Blue Digit <br> <br>Package list: <br>1 * Voltage Meter <br>1 * Cable <br> <br>Electric Shock Warning: <br>Please ask a professional electrician to install this product, in order to avoid electric shock.<br>1、Compact shape and lightweight, portable to carry and use. <br>2、It can measure and show voltage, the measuring range is 50HZ/60HZ 70-380V AC. <br>3、The voltage meter uses 0.56inch 3-digit LED display, clear to read. <br>4、There are 2 wires for zero line and firewire, easy to connect, can test directly and no need of power supply. <br>5、Widely used for AC 220V mains electricity test, voltage monitoring of 220v generator and inverter, and other AC circuit voltage test.