Features 1、With the 48 x 24.5mm digital LCD display, which is more clear and convenient to read data. 2、Two-wire LCD volt meter panel, able to measure the voltage range is AC 80-300V or 150-500V, the testing range is wide and wire connection is easy. 3、Digital AC voltmeter and frequency meter display the measured AC voltage and AC current respectively on the same meter. 4、The enclosure of this voltmeter adopts completely closed design, it is safe and reliable to operate. 5、Low power consumption, high stability, high accuracy. The appearance adopts standard size, more convenient to install. Specification Features: 1. With the 48 x 24.5mm digital LCD display, which is more clear and convenient to read data. 4. The enclosure of this voltmeter adopts completely closed design, it is safe and reliable to operate. 5. Low power consumption, high stability, high accuracy. The appearance adopts standard size, more convenient to install. Specification: Item Type: Voltmeter Material: Plastic Measurement Accuracy: 1% ±2 words LCD Screen Size: Approx. 48 x 24.5mm / 1.9 x 1in AC Frequency Measurement Range: 45.0-65.0hz Minimum Resolution: 0.1hz Measured Speeds: About 2 times/s External Size: Approx. 70 x 39 x 40mm / 2.8 x 1.5 x 1.6in Installation Size: Approx. 68 x 38mm / 2.7 x 1.5in Operating Temperature: -10 - +50℃ Working Humidity: 10-80% Working Pressure: 80-106kPa Package List: 1 x Voltmeter Package List