Based on this product's specifications, here are some alternatives and similar models
Relay Tester Voltcraft RT-100 — for testing relays 12 V to 230 V
Summary description:
Voltcraft RT-100 relay tester designed to check electromechanical relays across a voltage range of 12 V to 230 V. Compact single-piece unit for functional testing of relay switching, coil continuity and contact operation. Suitable for workshop diagnostics, maintenance and field service to quickly verify relay performance and reduce troubleshooting time.