The TT-SI 8050 active differential probe allows for high-voltage measurements to be taken safely and accurately between two voltage points, neither of which are earthed. This probe is designed for a wide range of measurements up to 70 MHz/± 1500 V and is compatible with earthed oscilloscopes from all common manufacturers. Power is supplied via USB or a 220 V mains adapter. Bandwidth: 70 MHz Division factor: x50/x500 DC accuracy: ±2 Maximum input voltages: Differential: ±150 V (DC + AC peak) @ x50 ±1500 V (DC + AC peak) @ x500 Common mode: ±1500 V (DC + peak AC) To earth: 600 Vrms CAT III/1000 Vrms CAT II Safety standard: IEC1010-031:2015