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What is the best alternative to Eyedro EHEM1?
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Brultech GreenEye Monitor (GEM)
All
7
Experiences
Pros
4
Cons
3
Top
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.
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Pro
Can work completely offline
If using the DashBox, internet outages or router downtime will not necessarily mean gaps/holes in data.
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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.
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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.
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Top
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.
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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.
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Top
Pro
Measures true power
Other options are inaccurate. This option is supposedly as dead on as the electric company metering is.
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Experiences
$500+
10
0
Sense
All
4
Experiences
Pros
1
Cons
3
Top
Con
Slightly inaccurate
Measures apparent power (S).
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Top
Pro
Detecting electronic devices is unique "smart" feature
As more houses come online with Sense installations, the library of electronic devices that the Sense system can recognize should improve. The Sense company intends to add more smart features later such as notifying the user if some devices are faulty once they have enough data to build on.
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Top
Con
Must create & log in to the company's cloud service to access data
If the company ever goes under, this unit could potentially become useless.
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Con
Slow and unreliable about discovering electronic devices
Discovery of devices/appliances is incredibly slow. Booting up your system for the first time you can expect to wait a minimum of 24 hours before the first device is recognized. One YouTube review (video here) has stated that the Sense unit has only identified 16 appliances in over a month for him. Some electrical appliances may never get recognized at all, especially smaller ones. Consistent identification of devices cannot be expected when connectivity drops or you have to reboot the sense system. Multiple items for the same appliance can't be merged or grouped. In short, the identification of electronic devices is still in it's early stages. It is supposed to improve over time but currently it's not a great experience.
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$299
6
0
Volkszähler
All
3
Experiences
Pros
3
Top
Pro
Web interface
comes with a webinterface to monitor you power consumption.
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Top
Pro
Easy to install and maintain
You just need an smart meter, which is usually in the EU provided by your energy supplier. a server with gnu/linux or a docker container and an ir read/write head.
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Top
Pro
No App
It is fully standalone.
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OSS
1
0
Smart meter with SML interface + Raspberry Pi
All
4
Experiences
Pros
3
Cons
1
Top
Pro
accurate data
it uses the same meter that your energy provider uses.
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Top
Con
needs some work
you have to follow tutorials but there are many available.
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Top
Pro
cheap
you only need a raspberry pi and one IR sensor
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Top
Pro
you need no electrician
you can do everything by yourself.
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here
1
0
Voltcraft SEM-5000 PRO
All
3
Experiences
Pros
2
Cons
1
Top
Pro
DIN rail
It can be attached to a DIN rail (IEC/EN 60715).
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Top
Con
Slightly inaccurate
Measures apparent power (S).
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Top
Pro
No cloud
It does not send any data home and is only accessible via webinteface.
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3
1
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