Supply of Digital Frequency Meter Multiline 3-Line 4-Digit Led Display Size 96Sq Mm. For Measuring Fr Equency Suitable For Voltage, 50-500V Ac. With Aux Supply 12-48V Dc 4Va Class 0.2, As Per Rdso Specifi Cation No. Rdso/Pe/Spec/Tl/0195-2019Rev.0, Warranty Period: 30 Months After The Date Of Delivery