<https://measuringmart.com/product/mzc-304f/#product>
<http://schema.org/description>
"&amp;nbsp;\r\n\r\n \tFault loop impedance measurement with 0.01 Ω resolution.\r\n \tLow-current impedance measurement in circuits protected by RCD ≥ 30mA with 0.01 Ω resolution (range of 180...270 V)\r\n \tOperates in networks with voltages 220/380 V, 230 V/400 V, 240/415 V (operating range 180...460 V)\r\n \tOperating voltage range: 180…270 V (for ZL-PE and ZL-N) and 180…460 V (for ZL-L).\r\n \tMaximum measuring current: 7.6 A for 230 V (3x10 ms), 13.3 A for 400 V (3x10 ms).\r\n \tOperating frequency 45…65 Hz\r\n \tCalculation of Ik fault current.\r\n \tMeasurement with swapped L and N conductors.\r\n \tMeasurement of resistance (RS) and reactance (XS) components.\r\n \tLow-voltage measurement of continuity of circuit and resistance."
<https://measuringmart.com/product/mzc-304f/>