When new hire Bill Harmon joined the team, he brought with him a new way of testing power at the socket level. There are several ways measure power at the plug, and we have explored a few. Raritan's software worked well with our Cyber Switching Dualcomm, but required a PC to run the logging software.
Since my new NAS test already requires ten Xeon-based systems, running another system at the same time, along with the three switches, and control system; running another PC at the same time is the last thing I want to do. Another option we looked at was running a logging multimeter, and building the accompanying electronics. Given how much AC power likes to bite me, this wasn't an option I wanted to explore.
It was after Bill's first review that he introduced me to Watts Up?. The company's meters claim accuracy to within +/- 1.5%, log data to internal flash, and sell for relatively low prices. The company also makes several other products, like the CloudPOWER series of rackmount server power management units.
Specifications, Pricing, and Availability
Today we're looking at the Watts Up? Pro, Pro ES, and flagship .Net meters. Watts Up? also sells a baseline meter void of logging capabilities, but it displays 18 different metrics of power consumption on a display like the products we're reviewing today.
Standard features on the products we're looking at today include: world-wide compatibility, accuracy within +/-1.5%, a display that shows the cost of power and 17 other additional metrics, user selectable sample rate (time between samples), USB PC interface, real-time logging capability, and the results are stored in internal memory.
Going from the bottom up, the Watts Up? Pro and Pro ES are nearly identical. Both have USB ports for real-time logging with a desktop, or notebook. The real-time software, called Real-Time Software USB, is an additional purchase of $72.95, but is a worthy add-on for the Pro, Pro ES, and .Net products. The Pro can record for 2,000 seconds with all parameters measured, or for 30,000 seconds, with just watts recorded. The beefier Pro ES takes that up to 8,000 seconds, or 120,000 seconds with just watts recorded.
The flagship .Net model goes well beyond the standard features. It includes an Ethernet connection for internet logging via a dedicated server accessible from the Watts Up? website. Watts Up? can also aid in programming an intranet server on your network, which is a service option available for a fee. .Net also features enhanced data integrity via hardware, and software improvements. These improvements allow end users to work with inverters that have fast rise times, and can damage the other models.
Using price listings from the official Watts Up? website, we found the base Watts Up? at $95.95, the Pro for $130.95, the Pro ES for $195.95, and the .Net for $235.95.