Megger 230425 is a 1000V insulation tester with a wide range of features, including:

5 ranges from 50V to 1000V
Test currents from 1mA to 5mA
Insulation resistance measurement up to 100GΩ
Continuity test with buzzer
Polarisation index and dielectric absorption ratio measurement
Data storage and retrieval
* USB interface for data transfer to a PC