Consumed, produced, and grid-flow energy
Review household usage, solar production context, and import/export patterns without treating the data as a utility meter.
WattPanel-2X | 120/240V Homes
Split-Phase Home Energy Monitor
See whole-home, selected-circuit, solar, and grid import/export context from a 120/240V split-phase panel monitor.
- Home usage
- 120/240V fit
- App insight
2 Main CTs
Up to 16 Sub circuits
2.4GHz WiFi
±2% Accuracy
What it measures
See how your home uses power before changing equipment.
WattPanel-2X helps homeowners understand energy use at the panel level, including consumption, production, and selected circuit context where the chosen CT bundle supports it.
Whole-home plus circuit context
Use two main CTs for L1/L2 whole-home visibility and optional 50A Sub CTs for selected hot conductors.
Fast app-based usage review
Use app views to compare configured channels, daily history, solar context, and major-load patterns before deciding what to investigate next.
Panel fit and installation
Confirm the panel before choosing a CT bundle.
Split-phase monitoring depends on service type, CT clamp clearance, panel access, antenna placement, and local electrical requirements. Electrical panel work should be handled by qualified personnel.
Service focus Built around 120/240V split-phase home panels.
Main CTs Two larger CT clamps are used around the L1 and L2 service conductors for whole-home visibility.
Sub CTs Selected bundles can add up to 16 smaller 50A CT clamps for individual hot conductors.
Connectivity 2.4GHz WiFi only; external cabled antenna placement should be reviewed around metal panels.
Installation Qualified electrical personnel are required for electrical panel work.
Installation review
Three checks before electrical work begins.
Use these visuals to discuss the installation context; they are not a substitute for the product manual or local electrical requirements.
Step 01
Map the service and CT path
Review the split-phase service, L1/L2 main CT placement, selected Sub CT conductors, and routing space before work starts.
Step 02
Place the monitor and antenna
Plan the compact monitor position and place the external cabled antenna outside or beside metal panel enclosures when needed.
Step 03
Check ports and CT connections
Confirm that main CT leads use the top ports and each Sub CT lead returns independently to a side port.
Before you buy
Confirm electrical fit before installation.
- Confirm the home uses a supported 120/240V split-phase service before ordering.
- Check panel access, available space, CT clamp clearance around individual hot conductors, and antenna placement.
- Use local code requirements and qualified electrical review before installation.
- Do not open electrical panels, test live wiring, or use this product page as installation instructions.
Choose your CT bundle
Start from the monitoring scope you need.
Choose the CT path by the level of visibility the home needs. Start with whole-home monitoring, then add circuit context only when the panel and install plan support it.
Start with whole-home visibility.
- Includes
- 2x 200A main CTs
- Best for
- Homes that need panel-level energy context first.
- Before ordering
- Confirm 120/240V split-phase service.
Whole-home + 8 circuit bundle
- Includes
- 2x 200A main CTs + 8x 50A Sub CTs
- Best for
- Selected loads that need more context without using all channels.
- Before ordering
- Confirm panel space and CT placement for selected circuits.
Whole-home + 16 circuit bundle
- Includes
- 2x 200A main CTs + 16x 50A Sub CTs
- Best for
- Broader individual-circuit review across more loads.
- Before ordering
- Confirm CT routing, panel access, and bundle availability.
300A mains + 16 circuit bundle
- Includes
- 2x 300A main CTs + 16x 50A Sub CTs
- Best for
- Homes where the mains CT size needs confirmed before ordering.
- Before ordering
- Confirm service type, panel space, CT size, and installation responsibility.
Compare all CT paths
Compare Mains-only 8 circuit 16 circuit 300A mains
Main CTs 2x 200A 2x 200A 2x 200A 2x 300A
Individual-circuit CTs None 8x 50A Sub CTs 16x 50A Sub CTs 16x 50A Sub CTs
Best fit Whole-home visibility Selected load context Broader circuit review CT size review
Before ordering Confirm split-phase fit Confirm panel space Confirm CT placement Confirm mains CT size
What's included
One monitor, with CT count matched to the selected bundle.
Confirm the exact CT count, antenna placement, panel access, and selected option before ordering.
WattPanel-2X monitor
1 monitorThe main device for the configured split-phase monitoring setup.
200A main CTs
2 CTsUsed around the L1 and L2 service conductors for whole-home visibility on supported split-phase service.
50A Sub CT set
0, 8, or 16 CTsDepends on the selected bundle and the individual hot conductors the panel can support for monitoring.
Setup checks
2.4GHz WiFiConfirm WiFi reach, antenna placement, panel access, and qualified electrical review.
App insight
Use app views to understand patterns, not to claim savings.
Energy data can help people compare usage moments, review configured channels, and understand solar or grid-flow context. It is designed for usage insight and should not be treated as a billing meter.
Specs
Product details that matter before fit review.
Review the service, CT scope, measurement, connectivity, and installation facts before selecting a bundle.
Fit
Electrical fit
Model WattPanel-2X Home Energy Monitor
Service focus 120/240V split-phase home panels; fit must be confirmed before installation
Main CT path 2 main CTs for L1/L2 whole-home monitoring
Sub-circuit path Up to 16 individual hot conductors with 50A Sub CTs, depending on selected bundle
Installation Qualified electrical personnel required
Data
Measurement and reporting
Measurements Voltage, current, power factor, active power, frequency, consumed energy, and produced energy
Reporting cycle Every 15 seconds
Accuracy ±2%
Setup
Connectivity and physical details
Connectivity 2.4GHz WiFi; 5GHz WiFi is not supported
Antenna placement External cabled antenna placement should be reviewed for metal panel enclosures
Dimensions 111.3 x 81.2 x 41.4mm
Documents
Use published documents before checkout.
Product documents, certification records, and store policies are available for review. Electrical panel work should still follow qualified personnel and local requirements.
Product manual WattPanel-2X Quick Start Guide
Use the product guide for setup and product-specific documentation before planning an order.
Certification evidence WattPanel-2X CE EMC ReportCertification evidence is provided as a document reference, not as installation approval.
Store policy Shipping, Returns & WarrantyReview store policy terms for direct Grus.io purchases.
Buying questions
Resolve fit, bundle, and installation questions before ordering.
Use these answers to decide whether the monitor setup fits the home, which CT scope to review, and when support should step in before an order.
01 Product fit Will this work with my home panel?
WattPanel-2X is built around 120/240V split-phase home panels. Before choosing a bundle, confirm the service type, panel access, CT clamp clearance around the relevant hot conductors, antenna position, and 2.4GHz WiFi reach.
02 Bundle choice Which CT bundle should I choose?
Choose mains-only when you mainly need whole-home visibility. Choose an 8 circuit or 16 circuit bundle only when the panel layout, CT routing, and install plan support the extra circuit CTs.
03 Circuit insight Can it show individual appliance use?
It measures the mains and selected circuits where CT clamps are placed around the appropriate conductors. It should not be treated as a universal appliance detector for every device in the home.
04 Installation Can I install it myself?
Do not assume that. Electrical panel work can require qualified electrical personnel and local code review. This product page is for buying and fit review, not installation instructions.
05 Measurement Does it replace my utility meter?
No. The app views are for home energy insight and configured channel review. They should not be treated as a billing meter or a replacement for utility metering.
06 Savings Will it lower my electricity bill?
It can help reveal usage patterns, but lower bills depend on home behavior, utility rates, equipment, installed loads, and how the information is used.
07 Before ordering What should I prepare before contacting support?
Share the service type if known, the monitoring scope you want, the number of circuits you care about, panel access constraints, and any questions about WiFi or antenna placement.
Ready to choose?
Start with the bundle, then confirm electrical fit.
Review the CT path, check the split-phase requirements, and contact support when panel access, service type, or installation responsibility is not clear.
01 Choose CT scope
Mains-only, 8 circuit, or 16 circuit depending on the visibility the home needs.
02 Check electrical fit
Confirm split-phase service, panel space, CT placement, and 2.4GHz WiFi reach.