Need help on Alert configuration - Hardwar sensor(Node)

Hi Team , 

I need ep to configure the alert correctly .

We have alert configured for Hardware sensor (Node) - So when temperature of the node goes UP or power supply of the node goes down we should get warning or critical alerts .

But we are not getting the correct message of the alert .

on the message field we should get the exact event . (like Switch-1 power supply 1 is down ) .

How can we correct the configuration please suggest !