With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwrRfManfDate
cwr Rf Manf Date
1.3.6.1.4.1.9.10.52.1.1.1.1.11
This object represents the manufacturing date of the RF subsystem.
Back to CISCO-WIRELESS-EXP-MIB MIB page.
IPHost Network monitor allows you to monitor cwrRfManfDate on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.