Device Comparison
HomeWizard P1 Meter vs HomeWizard kWh Meter 1-Phase
A simple comparison between reading an existing smart meter and adding a DIN-rail kWh meter.
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Which To Choose
Start with the practical fit, then read the table.
HomeWizard P1 Meter
Best fit when protocol coverage such as P1/HAN smart-meter port using DSMR-style telegram data from one connected compatible utility smart meter; exposed upstream through HomeWizard local API v1/v2., local data access, and Home Assistant integration.
HomeWizard kWh Meter 1-Phase
Best fit when single-phase, nominal 230 V AC (176-276 V operating range), 50/60 Hz., solar import/export visibility, and local dashboards and Home Assistant.
Use this comparison when choosing the easiest HomeWizard path: plug into the utility smart meter, or add a dedicated DIN-rail meter for a circuit, solar inverter, EV charger, or heat pump.
At A Glance
Key fit signals before the full table
A quick pass over the most decision-shaping details for each device in this featured comparison.
HomeWizard P1 Meter
- Connectivity
- 2.4 GHz Wi-Fi 802.11b/g/n with local HTTP/JSON API access on the same LAN; initial setup uses the HomeWizard Energy app.
- Protocols
- P1/HAN smart-meter port using DSMR-style telegram data from one connected compatible utility smart meter; exposed upstream through HomeWizard local API v1/v2.
- Role
- P1 smart-meter reader and Wi-Fi data logger for electricity import/export, gas, per-phase telemetry, and solar-surplus visibility.
- Max devices
- 1
HomeWizard kWh Meter 1-Phase
- Phase
- Single-phase, nominal 230 V AC (176-276 V operating range), 50/60 Hz.
- Installation
- Indoor 2-module (36 mm) 35 mm DIN-rail installation; direct line-and-neutral wiring after suitable circuit protection by a qualified installer.
- Measurement
- Direct-connected single-phase import/export kWh and power meter for monitored circuits, solar panels, EV chargers, heat pumps, or the main connection.
- Max current
- 100 A
Before You Decide
Checks that matter before price.
- Start with the devices and protocols already installed in the home.
- Check whether the gateway is mainly for logging, cloud upload, automation, or all three.
- Prefer local recovery and local visibility when the gateway sits in the critical data path.
- Confirm cloud dependency before relying on it for long-term monitoring.
| Install fit | ||
|---|---|---|
| Phase support | Reads 1-phase or 3-phase data from a compatible smart meter P1 port | Single-phase, nominal 230 V AC (176-276 V operating range), 50/60 Hz. |
| Installation | Plug-in indoor P1-port smart-meter reader; powered by SMR5 P1 port or USB-C on older meters. | Indoor 2-module (36 mm) 35 mm DIN-rail installation; direct line-and-neutral wiring after suitable circuit protection by a qualified installer. |
| Measurement | Gateway/data logger reading smart-meter P1 telemetry for electricity import/export, gas, and solar surplus; not a direct current-carrying meter. | Direct-connected single-phase import/export kWh and power meter for monitored circuits, solar panels, EV chargers, heat pumps, or the main connection. |
| Max current | 0 A | 100 A |
| Meter fit | ||
| Accuracy class | Unknown | Active energy IEC 62053-21 Class 1 / EN 50470-3 Class B (MID). |
| Current sensing | Reads data from the utility smart meter P1 port | Built-in direct current path, 10 A base current, 0.5 A minimum current and 100 A maximum; no external CT. |
| Gateway fit | ||
| Connectivity | 2.4 GHz Wi-Fi 802.11b/g/n with local HTTP/JSON API access on the same LAN; initial setup uses the HomeWizard Energy app. | Unknown |
| Downstream protocols | P1/HAN smart-meter port using DSMR-style telegram data from one connected compatible utility smart meter; exposed upstream through HomeWizard local API v1/v2. | Unknown |
| Connected devices | 1 | Unknown |
| Role | P1 smart-meter reader and Wi-Fi data logger for electricity import/export, gas, per-phase telemetry, and solar-surplus visibility. | Unknown |
| Monitoring | ||
| Protocol | Wi-Fi / Local API | 2.4 GHz Wi-Fi / local JSON API v1 and HTTPS API v2 / WebSocket |
| Local API | Yes | Yes |
| Cloud dependency | Optional for live LAN data; required for app history, Energy+, remote services, and smart-charging predictions. | Optional for local API and Home Assistant; required for the app, remote history and firmware updates. |
| Home Assistant | Yes | Yes |
| Solar fit | ||
| Solar import/export | Yes | Yes |
| Buying context | ||
| Price range | About EUR 25-EUR 40 | About EUR 30-EUR 60 |
| Availability | Europe through HomeWizard official store and localized markets; requires a compatible P1/HAN smart meter. HomeWizard lists 1-phase and 3-phase smart-meter data support. | Europe, UK, and selected European HomeWizard store markets. |
| Source check | ||
| Last verified | Sep 11, 2026 | Sep 28, 2026 |
| Product page | Official page | Official page |
| Documentation | Official docs | Official docs |
Verdict
Choose HomeWizard P1 Meter if the utility smart meter already exposes the data you need. Choose the kWh Meter 1-Phase when you need dedicated circuit or inverter metering that the P1 port cannot separate.
FAQ
Common decision questions.
Which energy gateway should I choose?
Choose the option that matches your installation constraints and data path first. For HomeWizard P1 Meter vs HomeWizard kWh Meter 1-Phase, the full table is most useful after you know whether local data access, cloud convenience, backup behavior, solar visibility, or expansion matters most.
What should I check before comparing prices?
Check installation fit, required accessories, official documentation, monitoring platform support, and any unknown fields in the source-checked table. Price is only useful once those constraints are clear.
Can these devices work with local dashboards or Home Assistant?
HomeWizard P1 Meter, HomeWizard kWh Meter 1-Phase list Home Assistant support in the catalog. HomeWizard P1 Meter, HomeWizard kWh Meter 1-Phase are marked with local API support. Confirm firmware, region, and integration maturity before treating this as a final compatibility guarantee.
Are unknown fields a reason to avoid a device?
Not always. Unknown means the field was not confirmed from the reviewed source data. Treat it as a question for the installer, reseller, or manufacturer before making a purchase decision.
Does the verdict replace the specification table?
No. The verdict is a practical shortcut. Use the table to confirm the exact constraints that matter for your home, especially installation, monitoring, and support details.