With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cfwHardwareStatusEntry
Cisco Firewall Hardware Status Entry
1.3.6.1.4.1.9.9.147.1.2.1.1.1
An entry in the table, containing status information about a resource.
Back to CISCO-FIREWALL-MIB MIB page.
IPHost Network monitor allows you to monitor cfwHardwareStatusEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.