Cabinet Temp Sensor Recommendations

I am in need of some cabinte temp sensors to be able to know when the cabinet ac is on the fritz and seta alarm.

It would be nice to have something that is DIN rail mount and I would like to be able to display the temp on the HMI screen so a unit with analog output or something on ethernet IP would be awesome.

Anyone know of a unit that would work?

I believe Rittal makes an assortment of sensors.
Heres another one I found:
http://www.temflexcontrols.com/temperature-instruments/index.html

Here is what I could find at Rittal:
http://www.rittal-corp.com/products...me=Digital Temperature Display and Thermostat

It doesn't have analog output but does have a display and sensor.

It is about $160.00
http://www.cmafh.com/SearchResults.aspx?keyword=3114200||kw&type=like&stock=

Is there a PLC in the cabinet with Analog in?
Maybe a signal conditioner and Thermocouple will work?

PT100 or f.e.K-Type thermocoupler if You have analog input it for.
Cubicle ventilation can be controlled by digital output.