Compatibility check 1: service-panel and phase compatibility
For whole-home energy monitors, record the exact value, standard, measurement, or supported condition behind service-panel and phase compatibility before checkout. A broad category label does not prove that the selected variant fits. Confirm the manufacturer, complete model, hardware revision, electrical rating, protocol, controller support, included parts, and region rather than assuming similarly named products share limits.
Compatibility check 2: current-transformer count and fit
Test current-transformer count and fit across the actual fixture, circuit, controller ecosystem, radio path, owner account, and manual fallback—not a product-photo setup. If this whole-home energy monitors fit depends on a neutral wire, hub, bridge, account, subscription, compatible controller, professional installation, or reliable cloud service, confirm the exact part, service, or behavior as part of compatibility.
Compatibility checks 3 and 4: licensed installation requirements; device disaggregation, sampling, and export
For whole-home energy monitors, licensed installation requirements and device disaggregation, sampling, and export are the limiting conditions most likely to surface only after installation. Measure the smallest clearance, weakest connection, least compatible user or device, and the most demanding normal task. Passing an ideal bench test is not enough.
Prove fit in a reversible order
Use this sequence: have the panel assessed, install sensors to the exact instructions, label channels, compare a known load, and use trends rather than a single estimate. Keep labels, packaging, manuals, and the previous system until the product works through normal use and a recovery test. Photograph wiring, measurements, or assembly states that would be difficult to reconstruct.
A failed fit check is a stop signal
Stop when the panel cannot be safely accessed, code requires work beyond the user, or billing-grade accuracy is expected from a consumer monitor. Do not repair a fundamental mismatch with unapproved accessories, copied settings, or community anecdotes. Use circuit-level smart plugs when it meets the job with a clearer compatibility path.
