Yes, you can add SNMP if you are using a CPM-5 (released April 2025).
The CPM-5 provides SNMP support for the voter in the form of Fault monitoring and notifications. The CPM-5 uses the DMH Software SNMP agent, which can be used with V1, V2, and V3 SNMP protocols. The MIB file required for SNMP is available on the SNV-12 Software/Firmware download page.