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Add to SafariWhen comparing Voltcraft SEM-5000 PRO vs Brultech GreenEye Monitor (GEM), the Slant community recommends Brultech GreenEye Monitor (GEM) for most people. In the question“What is the best whole house electricity monitors?” Brultech GreenEye Monitor (GEM) is ranked 1st while Voltcraft SEM-5000 PRO is ranked 4th. The most important reason people chose Brultech GreenEye Monitor (GEM) is:
If using the DashBox, internet outages or router downtime will not necessarily mean gaps/holes in data.
Question Ranking
Pros
Pro DIN rail
It can be attached to a DIN rail (IEC/EN 60715).
Pro No cloud
It does not send any data home and is only accessible via webinteface.
Pro Can work completely offline
If using the DashBox, internet outages or router downtime will not necessarily mean gaps/holes in data.
Pro Monitors water, gas, temperature, and electricity usage simultaneously
There are four pulse counter inputs which can be used to measure gas, water, possibly other things.
1 temperature bus/ 8 temperature inputs for tracking heating patterns.
32 current transformers
Overall a comprehensive monitoring solution for utilities.
Pro Flexible and modular
It's nice that they let the user modify the package to suit their needs, particularly network method and whether to use a cloud service, keep it local, or a combination of both.
Even if no module is selected it still comes with a DB9 cable for RS232 access.
Pro Measures true power
Other options are inaccurate. This option is supposedly as dead on as the electric company metering is.
Cons
Con Slightly inaccurate
Measures apparent power (S).
Con Expensive
Once you add optional modules such as Wifi, Ethernet, Zigbee connectivity options; DashBox (data storage /local webapp server for presenting the data), and Current Transformers the cost approaches $700.
Con Not really "smart"
GEM can only report whole house energy measurements and measurements per circuit. It can't tell you anything "smart" about your appliances. This means more investigative effort involved to understand how much your appliances use. Especially if something is faulty or working inefficiently.
Con Installation & setup is lengthy
It will take a long time to install all the monitors and setup the system to show you everything about your home's carbon footprint.
