"I recently purchased the Ultimate Sensor from SmartHomeShop, and I am extremely satisfied with both the product and service! Delivery to Estonia was impressively fast, arriving in just 4 days. The packaging was very professional, ensuring the product arrived in perfect condition. As for the sensor itself, it's high-quality and feels very premium. The comprehensive manual made setup a breeze, even for someone not super tech-savvy. I highly recommend this product and the shop for anyone looking for reliable smart home devices!"
Local, open, and built for Home Assistant
SmartHomeShop: smart hardware for Home Assistant
Our products run 100% locally on your own network, with software that is fully open source. Every product is designed, developed, and built in the Netherlands, with a clear focus on quality, transparency, and seamless Home Assistant integration. We create purpose-built solutions for challenges standard products cannot solve, delivering features and reliability you will not find elsewhere.
Our hardware for Home Assistant
Smart sensors for Home Assistant
UltimateSensor v2
Our most complete sensor with CO2, VOC, temperature, humidity, lux, dual mmWave, extra PIR, built-in microphone and speaker. Works with WiFi, Ethernet, PoE and USB-C.
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UltimateSensor Mini v2
More compact model with CO2, VOC, temperature, humidity, lux and dual mmWave. No microphone, speaker or extra PIR, but it adds Thread alongside WiFi, Ethernet, PoE and USB-C.
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CeilSense
All-in-one built-in smart sensor for ceiling or wall. Detects motion via mmWave, measures CO₂, temperature and humidity, plus 16 RGB LEDs for status and ambient lighting.
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WallSense
Coming soonPresence, air quality, light sensing and touch in one sensor for your wall back box. With RGB lighting.
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WaterFlowKit
Measure water usage and optional temperature per faucet, pipe or heating circuit. Connect up to 4 flow sensors for live insight into flow, consumption and temperature in Home Assistant.
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WaterP1MeterKit
Measure water AND/OR energy by choice. Use for water only, energy only, or both together in one smart kit with live updates, Ethernet, and PoE support.
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WaterMeterKit
Transform the water meter of your home into a smart monitor for direct, real-time insights into your consumption.
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P1SplitterKit
Safely split your DSMR P1 port into five outputs for multiple devices.
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P1MeterKit
Immediate insight into your electricity and gas consumption from your DSMR energy meter.
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New delight variant to compare
Not just stars, but real experiences from customers using our products at home with Home Assistant.
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SmartHomeShop Cloud
All your SmartHomeShop devices, clearly presented in one app
Want to view live readings, history, and alerts without maintaining your own Home Assistant setup? SmartHomeShop Cloud brings supported products together in one clear web dashboard.
Choose the cloud-enabled firmware during setup. The device remains available locally and can still work with Home Assistant; cloud sync is an explicit, optional choice.
The SmartHomeShop app is still in development. Features may change or be temporarily unavailable.
- Live insight
- View electricity, gas, water, indoor climate, and occupancy data, depending on the connected product.
- History and costs
- Compare days and months, view up to twelve months of history, and calculate energy and water costs using your own rates.
- Alerts that fit you
- Set alerts for events such as leaks, unusual consumption, or high CO₂ levels.
Dashboard
Home
P1MeterKit
Meter cabinet
281 W
feed-in 1.240 W
WaterMeterKit
Water meter
3,6 L/min
today 142 L
Energy costs this month
€ 86,40
History
12 months
Home Assistant
Home Assistant, enhanced for our products
Home Assistant lets all your smart devices work together locally. Our products appear through ESPHome by default, so you do not need a cloud account or an extra integration for normal use.
Install our free SmartHomeShop integration through HACS to add automatic product discovery, extra entities, ready-made dashboard cards, and tools such as Room Designer, leak detection, and Smart Energy. Everything stays on your own network.
What does the integration add?
Automatic product discovery
The integration finds supported SmartHomeShop devices and connects the right features without making you search for entities manually.
Ready-made cards and panels
Use visual dashboard cards, Room Designer, and Smart Energy without building everything yourself in YAML.
Local, free, and open source
The connection runs through ESPHome on your own network and is available free from the default HACS store.
The foundation
ESPHome works immediately
Once connected to your network, the product already appears in Home Assistant with its standard sensors and settings.
The upgrade
In 3 simple steps
- 1 Add the product through ESPHome
- 2 Install SmartHomeShop.io from HACS
- 3 Select your product and add the cards
For experienced users
More control, no mandatory cloud
Use extra entities, services, and visual editors in your automations. The integration stays local and its source code is available on GitHub.
Our code runs on ESPHome
ESPHome is the firmware layer on the device itself (the software inside the sensor/kit). Home Assistant then communicates with that firmware locally on your own network. This keeps your data and control local, with a strong security baseline through local communication and encrypted API connections. This gives you a clear stack: hardware → ESPHome firmware → Home Assistant dashboard.
Adopt our device in ESPHome
Products that work in real homes
We make niche products for use cases where no good solution exists yet, or where existing products can be better. Sometimes we create something entirely new; sometimes we make an existing idea more practical for Home Assistant users.
The result is a solution that is easier to install, use, and maintain.
Development
Hardware and firmware in-house
Hardware, firmware, and configuration are designed to work together. That helps us solve issues faster and deliver focused improvements.
Support
Help with setup and everyday use
Our guides, support, and community help you from the first connection to daily use. If you get stuck, you can contact us directly.
Visit supportCommunity
Built with Home Assistant users
Community suggestions and real-world experience help decide which features, documentation, and improvements come next.
Discord 854 online 8,543 members
Behind SmartHomeShop
Meet Dwain
SmartHomeShop was founded by Dwain S. He has been active in the Home Assistant community for more than ten years and is also known for the free Dwains Dashboard community project.
What began years ago with hardware for his own Home Assistant installations has grown into niche products used around the world. Design, firmware, assembly, documentation, and support deliberately stay close together, so real-world experience and feedback quickly become meaningful improvements.
- 10+
- years active with Home Assistant
- 5+
- years developing smart-home hardware
- NL
- designed and built in the Netherlands
Smart Home Specialist
Ready for a smarter home?
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