Based on this product's specifications, here are some alternatives and similar models
Pollin WN-3F 3-Phase LED Voltage Indicator 3 x 400V AC for TH35 DIN Rail
Summary description:
The Pollin WN-3F is a reliable 3-phase LED voltage indicator designed for monitoring electrical systems with a voltage of 3 x 400V AC. This compact device is intended for mounting on a standard TH35 DIN rail, making it ideal for industrial and residential electrical distribution boards. It provides clear visual status of voltage presence across all three phases, ensuring efficient system diagnostics and safety monitoring in various electrical installations.