An SNMP monitor is a software tool or system that is used to monitor and manage devices on a network through Simple Network Management Protocol (SNMP). It collects data and statistics from SNMP-enabled devices such as routers, switches, servers, printers, and other network equipment. The SNMP monitor receives SNMP traps or polls devices to retrieve information such as performance metrics, status details, and resource usage. It can trigger alerts or notifications when it detects anomalies or irregularities in device behavior, helping network administrators to identify and resolve network issues quickly.