Choosing a power meter for energy management often comes down to the size of the job. Do you need to see what each circuit in your home is doing as it happens, or do you need power monitoring at a panel? These two listings answer that question in different ways: the Smart Home Energy Monitor with 16 50A Circuit Level Sensors is built for residential circuit-by-circuit tracking, while the Schneider Electric PM8240 Power Quality Meter PowerLogic METSEPM8240 is a used power meter / power monitoring module from the PowerLogic PM8000 line.
Quick verdict
If you want to track individual circuits at home, the Smart Home Energy Monitor is the practical pick: it is new and designed for clamp-on installation. If the job calls for a panel-grade metering module, the Schneider Electric PM8240 is the one to evaluate, assuming a used unit is acceptable. Both can report power data, but they serve different panels and different buyers.
Price and feature comparison
| Schneider Electric PM8240 | Smart Home Energy Monitor | |
|---|---|---|
| Listed price | USD 412.50 | USD 221.91 |
| Condition | Used | New |
| Product type | Power Meter / Power Monitoring Module | Smart Home Energy Monitor with 16 50A Circuit Level Sensors |
| Best fit | Panel-focused power monitoring | Home circuit-by-circuit energy tracking |
The listed prices differ by $190.59. That spread makes sense when you consider a new residential monitor on one side and a used panel-focused meter on the other. The two also differ in condition: the monitor is new, while the PM8240 is used. That condition gap matters when you decide how much hands-on verification you are willing to do before installation.
Where each product wins
- Smart Home Energy Monitor wins for home energy management. It is new and built for per-circuit visibility rather than a single whole-home number.
- Schneider Electric PM8240 wins for panel-level monitoring. It sits in the PowerLogic PM8000 series and is typed as a power meter / power monitoring module, which is the category you want when the panel itself is the focus.
Product notes
Smart Home Energy Monitor with 16 50A Circuit Level Sensors
This new monitor lists at USD 221.91 and comes with the SEM-Meter, 16 50A circuit-level sensors, and 2 200A circuit-level sensors. The clamp-on design installs in the circuit panel of most homes, and support is listed for single-phase, split-phase 120/240VAC, and three-phase systems. For someone who wants real-time power usage by circuit, this is the more direct tool. The limitation is that it is an energy monitor rather than a power-quality measurement module; if your project is an industrial panel that needs advanced power-quality data, this is not the right category. It still may be a great fit for a residential setup where per-circuit visibility matters more than power-quality analysis.
Schneider Electric PM8240 Power Quality Meter
The Schneider Electric PM8240 is a PowerLogic PM8000-series power meter / power monitoring module, and its condition is explicitly listed as Used. Its strength is the product type: this is a power quality meter rather than a consumer energy monitor. If your electrician or maintenance team can commission a used unit and you need panel-level power monitoring from the PowerLogic line, this is the option to consider. The main limitation is that it is sold as used, so you are relying on the seller's condition claim and your own testing rather than buying a fresh-out-of-box product. That makes the pre-purchase demo video and your own inspection more important than with a new unit.
Final choice by use case
Choose the Smart Home Energy Monitor for residential circuit tracking and clamp-on installation. Choose the Schneider Electric PM8240 when you need a PowerLogic power quality meter for a panel and can work with a used unit.
