We have a watchport/w sensor and I wanted to start monitoring it with zabbix. I did a little googling and the only thing this sensor does is set the DCD line on a usb modem to high when there is water, otherwise it's low (not connected).
I wanted to monitor the ambient temperature in my computer room and decided to try using the built in sensors on my servers. ipmitool showed an ambient temperature, so I did some sed to get just the temperature.
[thomas@hotstuff: ~] $ sudo ipmitool sdr type "Temperature" |grep Ambient
Ambient Temp | 08h | ok | 7.1 | 22 degrees C