Perhaps a little pricier than the others mentioned, but I've had great experiences with the APC Netbotz line...the additional audio, visual and door monitoring comes in handy, plus it plays well with snmp-based trending tools like cacti and mrtg. Netbotz also monitors humidty, dew point, airflow, etc, which is great for measuring differentiation between cold and hot rows. -----Original Message----- From: Tony Patti [mailto:tony@swalter.com] Sent: Friday, May 30, 2008 8:59 AM To: Chris Boyd; nanog@nanog.org Subject: RE: Power/temperature monitoring I agree with Chris -- we also have been using the ITWatchDogs products for years, and both the products and company have been wonderful to work with. Tony Patti CIO S. Walter Packaging Corp. -----Original Message----- From: Chris Boyd Sent: 5/30/2008 11:40 AM To: nanog@nanog.org Subject: Re: Power/temperature monitoring We've got a couple of the (beta test) mini goose climate monitors installed. Takes up less space than the big APC boxes we've been using. http://www.itwatchdogs.com/ --Chris