Based on this product's specifications, here are some alternatives and similar models
Power Supply LechPol PS306 for CCTV Testers
Summary description:
LechPol PS306 is a power supply designed for use with CCTV testers. It provides a dedicated power source for testing and troubleshooting video surveillance cameras and related devices. The unit is intended to power cameras during installation and diagnostics, enabling technicians to verify camera operation, adjust settings, and check connections on-site.