Feature: 1. GV13T digital voltmeter is a lightweight module used to measure and display generator voltage, frequency, and running time. 2. This AC digital display meter can replace the traditional pointer type meter to achieve multiple functions. 3. The digital display meter is fixed with conventional bolts, which is safe, convenient and firm. 4. Can measure voltage, frequency, accumulated running time at the same time. 5. Professional manufacture ensures you higher quality products, you can buy it with ease. Specification: Item Type: Generator Digital VoltmeterMaterial: Plastic Model: GV13T Parameter Display: Phase Voltage: V Frequency: Hz Cumulative Running Time: H Power Consumption: Maximum: 1 W Operating Temperature Range: -20℃ to 65℃ Size (W x H x D): Approx. 58 x 54 x 41mm / 2.3 x 2.1 x 1.6in Installation Opening (W x H): Approx. 47 x 37mm / 1.9 x 1.5in . Package List: 1 x Digital Display Meter