Item Type: Generator Digital Voltmeter_x000D_Material: Plastic_x000D_Model: GV13T_x000D_Parameter Display: Phase Voltage: V_x000D_Frequency: Hz_x000D_Cumulative Running Time: H_x000D_Power Consumption: Maximum: 1 W_x000D_Operating Temperature Range: -20 to 65_x000D_Size (W x H x D): Approx. 58 x 54 x 41mm / 2.3 x 2.1 x 1.6in_x000D_Installation Opening (W x H): Approx. 47 x 37mm / 1.9 x 1.5in 1GV13T digital voltmeter is a lightweight module used to measure and display generator voltage, frequency, and running time. 2This AC digital display meter can replace the traditional pointer type meter to achieve multiple functions. 3The digital display meter is fixed with conventional bolts, which is safe, convenient and firm. 4Can measure voltage, frequency, accumulated running time at the same time. 5Professional manufacture ensures you higher quality products, you can buy it with ease.1 xDigital Display Meter