With IPHost Network Monitor you can run simple snmp requests against a Fortinet device in your network.
fgHwSensorCount
fg Hw Sensor Count
1.3.6.1.4.1.12356.101.4.3.1
The number of entries in fgHwSensorTable
Back to FORTINET-FORTIGATE-MIB MIB page.
IPHost Network monitor allows you to monitor fgHwSensorCount on Fortinet device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Fortinet firewalls right now.