What are you actually monitoring?
When the task is power meters for energy management, the first decision is not budget-it is which electrical system you need to see. The four listings in this review cover four different jobs: whole-home usage with solar sensor clamps, a gateway for a specific solar/storage ecosystem, a 3-phase power quality meter, and a 24 V dc battery monitor. Their listed prices run from $199.99 to $1,499, so matching the tool to your setup is the fastest way to narrow the choice.
Quick take
- Whole-home tracking with solar clamps: Sense SM2 Home Energy Monitor System w/ Sense Solar Sensors
- Remote monitoring for Schneider Electric Conext solar/storage/backup systems: Schneider Electric Insight Home (865-0330)
- 3-phase power quality: General Electric PQM II Power Quality Meter for 3 Phase System - TESTED
- 24 V dc battery-bank status: Aquion Energy BMS-200 / 0140D11AU143 Battery Monitoring System 24 Vdc
Listed prices at a glance
The table below sorts the four listings by listed price, low to high. The bars show the relative price position within this set.
| Product | Listed price | Price bar |
|---|---|---|
| Sense SM2 Home Energy Monitor System w/ Sense Solar Sensors | USD 199.99 | |
| Schneider Electric Insight Home (865-0330) Energy Monitoring & System Gateway | USD 397.95 | |
| General Electric PQM II Power Quality Meter for 3 Phase System - TESTED | USD 506.00 | |
| Aquion Energy BMS-200 / 0140D11AU143 Battery Monitoring System 24 Vdc | USD 1,499.00 |
Decision matrix
| What you need | Focus on | Why |
|---|---|---|
| Whole-home energy tracking plus solar clamp input | Sense SM2 Home Energy Monitor System w/ Sense Solar Sensors | Includes two main CT clamps and two solar CT clamps, four clamps total |
| Insight into a Schneider Electric Conext-based solar/storage/backup system | Schneider Electric Insight Home (865-0330) | New gateway for residential and light commercial installations; connects to InsightCloud |
| 3-phase power quality readings | General Electric PQM II Power Quality Meter for 3 Phase System - TESTED | Used unit described as tested and aimed at a 3-phase system |
| 24 V dc battery-bank monitoring | Aquion Energy BMS-200 / 0140D11AU143 | Purpose-built battery monitoring system for a 24 V dc bank |
Product notes
Sense SM2 Home Energy Monitor System w/ Sense Solar Sensors
The Sense SM2 is the least expensive listing in this group at $199.99, and it is the one aimed directly at whole-home monitoring. The listing describes it as never installed or used, with both boxes opened and all components unused. The kit includes the Sense SM2 monitor, two CT150 main current sensor clamps, and two additional Sense Solar sensor clamps, so you get four CT clamps in total. It works over Wi-Fi and lists Amazon Alexa as a smart-home compatibility. The trade-off is condition: it is open-box, with original packaging showing shelf wear and scuffs. Since it was never installed, the wear is mainly cosmetic.
Schneider Electric Insight Home (865-0330)
At $397.95, the Schneider Electric Insight Home is the middle-priced listing in this set and is sold as new. It is a monitoring and control gateway built for residential Conext-based solar, storage, and backup power systems, providing real-time visibility and remote access through InsightCloud. The listing describes it as the current supported gateway for residential and light commercial installations after the Insight Facility was discontinued. The matched use case matters: if you are not using Schneider Electric Conext power electronics, this is not a general-purpose energy monitor. For someone in that ecosystem, the new condition and gateway role make it a direct fit.
General Electric PQM II Power Quality Meter for 3 Phase System - TESTED
Priced at $506.00, the GE PQM II targets a different job: measuring power quality on a 3-phase electrical system in industrial or commercial settings. The listing says it was powered on, tested, and inspected, and it is sold as used. It also notes that some buttons do not make a clicking sound, so the physical controls show wear even though the test status is stated. If your project involves three-phase power and you need a dedicated power quality meter rather than a whole-home monitor, this is the one in this group with that 3-phase focus. The used condition and control-button quirk are the limitations to weigh against the listed price.
Aquion Energy BMS-200 / 0140D11AU143 Battery Monitoring System 24 Vdc
The Aquion Energy BMS-200 is the highest listed price in this group at $1,499.00, and it is the one option focused on battery-bank monitoring rather than whole-home or mains power quality. It is listed as New - Open box with a Country of Origin of the United States. The "24 Vdc" in the title points to its intended application: monitoring a 24 V dc battery system. If the core project is battery health and bank-level status for a DC setup, this is the purpose-built match. The open-box condition and the large price gap compared with the other three listings are the main hesitations; condition and budget will decide whether the specific battery-monitoring role is worth it.
Final recommendation by use case
Start with your electrical system rather than the ticket price. If the goal is whole-home usage with solar visibility, the Sense SM2 is the natural place to begin. If you are working within a Schneider Electric Conext solar/storage/backup setup, the Insight Home gateway is built for that role. If the requirement is measuring a 3-phase industrial or commercial circuit, the GE PQM II is the 3-phase specialist here. And if the actual target is a 24 V dc battery bank, the Aquion BMS-200 is the one in this group built specifically for that application.
