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P1 Splitter Kit

Product information

24,75€
29,95€ incl. 21% VAT

P1SplitterKit – Split one P1 port to five independent outputs

The P1SplitterKit is the easiest and most reliable way to connect multiple devices to a single DSMR P1 port. This active hardware splitter expands a single P1 output into five electrically isolated outputs, allowing you to use multiple monitoring systems simultaneously without data loss or interference. No software, no configuration, just plug and play.

Ideal for P1MeterKit, Home Assistant, DSMR Reader, charging stations (Alfen, EVBox, Easee, Wallbox), inverters (SolarEdge, Huawei, GoodWe), HomeWizard, Powerbaas, energy managers and backup systems.

A Dutch product, designed with quality.

What's in the box?

  • P1SplitterKit: The main unit that splits one DSMR P1 port to 5 independent outputs with active signal amplification and electrical isolation.
  • RJ12 cable (1 meter): Extra long cable to connect directly to your energy meter.
  • Quick Start Guide: A brief explanation of installation and selecting the correct power supply option.
  • Optional: USB-C Adapter Set (3 meter cable): Recommended for DSMR v2, v3, or v4 meters, or when connecting many devices. Available in EU or Universal version.

Power Options

The P1SplitterKit offers flexible power supply options:

  • Power via P1 port: With DSMR v5 meters, the splitter is powered directly through the P1 port. No additional cables are required.
  • Power via USB-C: For DSMR v2, v3, or v4 meters, or for multiple connected devices. Use a standard USB-C cable.

Use the slider on the side to easily select the desired power source.

Electrical isolation and signal amplification

Each port is electrically isolated, so interference from one device won't affect the others. Your smart meter remains protected. The signal is actively amplified, allowing for longer cable runs without loss of quality.

LED status indicators

Each output has its own LED that flashes during data transfer. Separate LEDs indicate whether power is being supplied via the P1 port or USB-C. See instantly if everything is working, without any additional apps or checks.

Universal compatibility

Compatible with all DSMR v2, v3, v4, and v5 smart meters. Works in the Netherlands, Belgium, and throughout Europe. The full data signal is transmitted: electricity, gas, water, and other sensor data.

Need more than 5 outputs?

Multiple P1SplitterKits can be connected in series for additional outputs, without loss of signal quality thanks to signal amplification.

Product options

USB-C Adapter Set

USB-C Adapter Set

For stable power supply

€ € Combi-korting
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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)
USB-C: 5V DC, 500mA (2.5W max)
Standby consumption: <0.5W
Switchable via side slider between P1 and USB-C power
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

Frequently Asked Questions

What is the P1SplitterKit and what do I use it for?

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.

Does the P1SplitterKit work with all DSMR meters?

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.

How do I know if my devices are receiving data?

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.

Can I power the P1SplitterKit via USB-C?

Yes, the P1SplitterKit has flexible power options. With the slide switch on the side you can choose between power via the P1 port (for DSMR v5 meters) or external power via USB-C. For DSMR v5 meters, additional power is usually not needed. For DSMR v2, v3 or v4 meters or when using multiple devices, USB-C power is recommended.

Does the P1SplitterKit lose data through distribution?

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.

What is electrical isolation and why is it important?

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.

What is the difference between an active and passive P1 splitter?

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.

Can I use longer P1 cables with the P1SplitterKit?

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.

Can I connect an EV charging station to the P1SplitterKit?

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.

Does the P1SplitterKit work with solar panels and inverters?

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.

What cables do I need for the P1SplitterKit?

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.

How many devices can I connect maximum?

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.

Is installing the P1SplitterKit complicated?

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.

What happens if I want to connect more than 5 devices?

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.

Does the P1SplitterKit also support gas measurements via P1?

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.

Does the P1SplitterKit also work in Belgium or other European countries?

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.

Can I use the P1SplitterKit for dynamic energy contracts?

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.

Can I use the P1SplitterKit with my heat pump or boiler?

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.

Does the P1SplitterKit work with HomeWizard, Powerbaas or other P1 dongles?

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.

Is the P1SplitterKit safe for my smart meter?

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.