Based on this product's specifications, here are some alternatives and similar models
Uni-T UT512D High-Voltage Insulation Resistance Tester
Summary description:
The Uni-T UT512D is a professional high-voltage insulation resistance tester designed for precise electrical diagnostics. This device is essential for testing the insulation integrity of cables, motors, transformers, and other electrical equipment. It features robust construction, accurate measurement capabilities, and a user-friendly interface, making it an ideal tool for maintenance engineers and technicians performing safety inspections in industrial and commercial environments.