Some key features of the 440R-GL2S2T relay module include:

Dual-channel input: It has two independent input channels that can monitor separate safety devices or signals.

Time delay function: The module has configurable time delay options that allow for different response times depending on the application requirements.

Output contacts: The module provides safety output contacts that can be used to control the machinery or trigger appropriate safety responses in case of an emergency.

Diagnostic indicators: It features LED indicators that provide status and diagnostic information, allowing for easy troubleshooting.

Safety rating: The 440R-GL2S2T relay module is SIL 3 (Safety Integrity Level 3) rated, which indicates its high level of safety performance.