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P1 Splitter Kit

4,9 53 reviews

Product information

35,00€ incl. 21% VAT
28,93€ excl. VAT

  • 1 P1 port into 5 active, isolated outputs
  • No interference or data loss, everything connected at once
  • Works with DSMR v2 to v5, no configuration needed
  • Powered via the P1 port or USB-C
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One smart meter, five devices, zero interference

P1MeterKit, HomeWizard, EV charger and inverter all fighting over that single P1 port? The P1SplitterKit splits your port into five active, electrically isolated outputs: everything connected at once, without data loss. Connect, pick a power source, done.

P1SplitterKit splits 1 DSMR P1 port into 5 active, electrically isolated outputs. This allows you to connect multiple devices to the same smart meter simultaneously, without interference or data loss.

Ideal if you want to use a P1MeterKit, Home Assistant, DSMR Reader, HomeWizard, charging station, inverter or energy manager at the same time. No software or configuration needed: plug in, choose power source and you're done.

The splitter works with DSMR v2, v3, v4 and v5 smart meters in the Netherlands, Belgium and the rest of Europe. DSMR v5 meters can provide power through the P1 port, but not every meter supplies enough power for every combination of connected devices. USB-C power may therefore also be needed with DSMR v5. When in doubt or connecting multiple devices, USB-C is the most reliable choice.

Thanks to active signal amplification and electrical isolation per output, the signal remains stable and a fault on one device does not affect the other ports. Status LEDs immediately show whether data and power are active.

Developed in the Netherlands and built for reliable monitoring around the smart meter.

What's in the box?

  • P1SplitterKit with 5 independent P1 outputs
  • RJ12 cable (1 meter) for direct connection to the smart meter
  • Optional to order: USB-C Adapter Set with 3 meter cable. Mandatory for DSMR v2, v3 and v4. For some DSMR v5 meters, this is also recommended or necessary for stable operation, for example when multiple devices are connected simultaneously.

Need more than 5 outputs? You can use multiple P1SplitterKits in series thanks to the built-in signal amplification.

Try it yourself

Order the P1SplitterKit today, with a 14-day cooling-off period you can buy with confidence.

One smart meter, five devices, zero interference

P1MeterKit, HomeWizard, EV charger and inverter all fighting over that single P1 port? The P1SplitterKit splits your port into five active, electrically isolated outputs: everything connected at once, without data loss. Connect, pick a power source, done.

P1SplitterKit splits 1 DSMR P1 port into 5 active, electrically isolated outputs. This allows you to connect multiple devices to the same smart meter simultaneously, without interference or data loss.

Ideal if you want to use a P1MeterKit, Home Assistant, DSMR Reader, HomeWizard, charging station, inverter or energy manager at the same time. No software or configuration needed: plug in, choose power source and you're done.

The splitter works with DSMR v2, v3, v4 and v5 smart meters in the Netherlands, Belgium and the rest of Europe. DSMR v5 meters can provide power through the P1 port, but not every meter supplies enough power for every combination of connected devices. USB-C power may therefore also be needed with DSMR v5. When in doubt or connecting multiple devices, USB-C is the most reliable choice.

Thanks to active signal amplification and electrical isolation per output, the signal remains stable and a fault on one device does not affect the other ports. Status LEDs immediately show whether data and power are active.

Developed in the Netherlands and built for reliable monitoring around the smart meter.

What's in the box?

  • P1SplitterKit with 5 independent P1 outputs
  • RJ12 cable (1 meter) for direct connection to the smart meter
  • Optional to order: USB-C Adapter Set with 3 meter cable. Mandatory for DSMR v2, v3 and v4. For some DSMR v5 meters, this is also recommended or necessary for stable operation, for example when multiple devices are connected simultaneously.

Need more than 5 outputs? You can use multiple P1SplitterKits in series thanks to the built-in signal amplification.

Try it yourself

Order the P1SplitterKit today, with a 14-day cooling-off period you can buy with confidence.

Want the full story? The official product site shows everything: installation, features and FAQs.

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SPECIFICATIONS

Technical Specifications

Dimensions & Weight

Width: 10.0 cm
Depth: 3.7 cm
Height: 4.0 cm
Weight: Approximately 85 grams (excluding cables)

Connectivity

1× RJ12 input (6P6C) for DSMR meter connection
5× RJ12 outputs (6P6C) for devices
1× USB-C power connection for external power
Included: 1 meter RJ12 cable to get started immediately

Power & Consumption

P1 Port: 5V DC via DSMR meter (DSMR v5, depending on available power)
USB-C: 5V DC, 500mA (2.5W max)
Standby consumption: <0.5W
Switchable via side slider between P1 and USB-C power
USB-C recommended when in doubt or connecting multiple devices

Status Indicators

Power LED: Indicates power status (P1 or USB-C)
5× Data LEDs: Blink during data transmission per output
Visual confirmation of active connections per device

Compatibility

DSMR v4.0, v4.2, v5.0 meters
Landis+Gyr, Kaifa, Kamstrup meters
Universal RJ11/RJ12 devices
Home Assistant, DSMR Reader, P1MeterKit, charging stations, energy managers

Technical Properties

Signal amplification: Hardware-based without data loss
Data distribution: 1:5 distribution without quality loss
Maximum power: Up to 250mA per output
Material: ABS plastic housing with LED windows
Operating temperature: -10°C to +40°C

Software

No software required - works completely hardware-based. Plug & Play installation without configuration.

Included

1× P1SplitterKit main unit
1× RJ12 cable (1 meter) for energy meter connection
Comprehensive manual for quick installation

P1SplitterKit
2 year warranty
Shipped worldwide
Frequently Asked Questions

Got questions?

Find answers to the most frequently asked questions about the P1SplitterKit.

The P1SplitterKit is an active hardware-based splitter that divides your DSMR energy meter P1 port into 5 outputs. With electrical isolation and signal amplification, you can connect multiple monitoring devices simultaneously like a P1MeterKit, charging station monitoring, DSMR Reader, energy managers and Home Assistant setups without data loss or interference.

Yes, the P1SplitterKit is universally compatible with all DSMR v2, v3, v4 and v5 meters in the Netherlands, Belgium and the rest of Europe. The device works with all well-known brands such as Landis+Gyr, Kaifa, Kamstrup and Sagemcom. Simply insert the RJ12 cable from your energy meter into the input and connect your devices to the 5 outputs.

The P1SplitterKit has LED status indicators for each output. Each light blinks when data is being transmitted to the connected device. Additionally, there are separate lights that indicate whether the device is powered via the P1 port or via USB-C. This way you can immediately see if a connected device is correctly receiving data, without additional checks or apps.

Yes, the P1SplitterKit has flexible power options. With the slide switch on the side you can choose between power via the P1 port or external power via USB-C. DSMR v5 meters do not always provide enough power for every combination of connected devices, so USB-C power may also be needed with DSMR v5. When in doubt or connecting multiple devices, USB-C is the most reliable choice.

No, the P1SplitterKit amplifies the signal and distributes it to all 5 outputs. Thanks to electrical isolation and signal amplification, all connected devices receive exactly the same reliable dataset, even with longer cables. There is no software that can affect the signal.

Electrical isolation means that each port works completely separate from the other ports. This has major advantages: if one device causes interference, the other devices will not notice. Your smart meter remains protected and each device gets its own safe, independent connection.

An active P1 splitter like the P1SplitterKit amplifies and isolates the signal per port, while a passive splitter is merely a Y-cable that weakens the signal. An active splitter prevents interference and conflicts between devices. Passive splitters often cause problems as soon as multiple devices read data simultaneously.

Yes, because the P1SplitterKit amplifies the signal, you can use longer cables without quality loss. This way you can place your devices exactly where you need them, even if that is further from the meter cabinet. This is a major advantage over passive splitters.

Yes, the P1SplitterKit works excellently with charging stations from all well-known brands such as Alfen, EVBox, Easee, Zaptec, Wallbox and Charge Amps. Many charging stations use P1 data for load balancing to prevent overloading your connection. With the P1SplitterKit this continues to work stably, even with other devices connected.

Yes, the P1SplitterKit supports connections with inverters from GoodWe, Huawei, SolarEdge, SMA, Growatt, Fronius and Enphase among others. This allows you to monitor both consumption and feed-in in one overview. Connect your inverter gateway and other monitoring devices simultaneously without conflicts.

The P1SplitterKit comes with a 1 meter RJ12 cable to get started right away. For additional devices you need extra RJ11 or RJ12 cables. Difference between RJ11 and RJ12: RJ11 has 4 pins/contacts (narrower), RJ12 has 6 pins/contacts (wider) and is standard for DSMR P1 ports. Most P1 monitoring devices come with the correct RJ12 cable.

The P1SplitterKit has 5 outputs, so you can connect a maximum of 5 devices simultaneously. This is more than most competitors offer (often only 2-4 ports). More than sufficient for Home Assistant, DSMR Reader, charging station monitoring, energy managers, inverter gateways and backup systems.

No, installation is plug & play and takes less than a minute. No configuration needed: 1) Connect the RJ12 cable from your energy meter to the input, 2) Connect your monitoring devices to the 5 outputs, 3) Choose power via the slide switch (P1 or USB-C). The LED lights immediately indicate if everything works correctly.

For more than 5 devices you can chain multiple P1SplitterKits in series, or use an output from the first splitter as input for a second splitter. This gives you additional outputs without signal quality loss thanks to the signal amplification.

Yes, the P1SplitterKit distributes the complete DSMR signal including all data such as electricity, gas, water (if available), temperature and other sensor data that your P1 meter outputs. All connected devices receive the same complete dataset.

Yes, the P1SplitterKit is fully compatible with DSMR and ESMR smart meters used throughout Europe. This includes meters from Landis+Gyr, Kamstrup, Sagemcom, Kaifa and other European manufacturers. Both Dutch, Belgian and other European smart meters are supported.

Yes, with dynamic energy contracts from providers like Tibber, EasyEnergy, ANWB Energie, Zonneplan or Frank Energie, real-time P1 data is crucial. The P1SplitterKit makes it possible to reliably have multiple apps and devices monitor your consumption simultaneously for optimal energy savings.

Yes, many heat pumps and boilers use P1 data to switch smartly and save energy. With the P1SplitterKit you connect these safely alongside other devices. Brands like Daikin, Mitsubishi, Samsung, Vaillant and Bosch that support P1 integration work seamlessly with the splitter.

Yes, all well-known WiFi P1 dongles and meters work seamlessly with the P1SplitterKit. This includes HomeWizard P1 Meter, Powerbaas, Iungo, SmartStuff and of course our own P1MeterKit. You can even connect multiple different P1 dongles simultaneously without interference or conflicts.

Yes, thanks to electrical isolation, your smart meter is fully protected against interference from connected devices. The P1SplitterKit electrically separates each device, so problems with one device can never affect your meter or other devices.

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P1 Splitter Kit

35,00€ incl. 21% VAT