GV13T is one light and low -orientated module used for checking and demonstrating Voltage, Frequency and accumulating time of generator. This module can replace , for it can with multi-functions. It uses normal screw for connection which is more convenient for installation.Voltage, frequency and accumulating time can be checked and demonstrated in the mean time;Results shown by 4-position digital LED tubeSelf-recycling of parameterswith Page Turning ButtonsExtra working power is not neededParameter demonstration:Phase voltageFrequencyAccumulating timeWorking power: AC 70~380 VConsuming power:MAX:1 WRecycling time: Voltage:5S, Frequency:5S, Accumulating time: 2STemperature: -20 ~ 75Size (W * H * D):58mm x 54mm x 41mmInstallation Size(W * H): 47mm x 37mmWeight:50GColour:blackMaterial:ABSPackage Contents:1 x Frequency Test Hour MeterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.