Temperature monitoring

[dovid at telecurve.com (Dovid Bender)]

All,

We had an issue with a DC where temps were elevated. The one bit of
hardware that wasn't watched much was the one that sent out the initial
alert. Looking for recommendations on hardware that I can mount/hang in
each cabinet that is easy to set up and will alert us if temps go beyond a
certain point.

TIA.

Dovid