{"product_id":"sensy-one-s1-pro-multi-sense-zigbee","title":"Sensy-One S1 Pro Multi Sense mmWave Multisensor | Zigbee Version","description":"\u003cp style=\"background-color: #f8f9fa; padding: 10px; border-left: 4px solid #007bff; margin-bottom: 20px;\"\u003e\u003cstrong\u003eLooking for the Wi-Fi \/ ESPHome version?\u003c\/strong\u003e Check out the \u003ca href=\"https:\/\/slimhuisje.nl\/products\/sensy-one-s1-pro-multi-sense\" title=\"Sensy-One S1 Pro Multi Sense Wi-Fi\"\u003eSensy-One S1 Pro Multi Sense (Wi-Fi version)\u003c\/a\u003e here.\u003c\/p\u003e\u003ch4\u003e\u003cspan\u003eMultifunctional Presence and Air Quality Sensor for Home Assistant (Zigbee)\u003c\/span\u003e\u003c\/h4\u003e\u003cp\u003eThe \u003cstrong\u003eSensy-One S1 Pro Multi Sense (Zigbee Version)\u003c\/strong\u003e is an advanced presence and environmental sensor, specially developed for Home Assistant. This compact sensor combines real-time mmWave presence detection via the Hi-Link LD2450 radar module with extensive air quality measurement, ambient light measurement, an RGB status light, and a built-in buzzer for alerts. Thanks to the native \u003cstrong\u003eZigbee protocol\u003c\/strong\u003e, the sensor integrates locally and seamlessly into Home Assistant via \u003cstrong\u003eZHA\u003c\/strong\u003e or \u003cstrong\u003eZigbee2MQTT\u003c\/strong\u003e, without requiring Wi-Fi credentials, cloud accounts, or ESPHome configurations.\u003c\/p\u003e\u003ch4\u003eConnectivity and Protocols\u003c\/h4\u003e\u003cp\u003eThe S1 Pro Zigbee is powered by the powerful \u003cstrong\u003eESP32-C6 microcontroller\u003c\/strong\u003e (32-bit RISC-V single-core processor) with native 2.4 GHz IEEE 802.15.4 Zigbee connectivity. The sensor connects directly to your Zigbee coordinator and operates locally via ZHA (with the included \u003ca href=\"https:\/\/github.com\/sensy-one\/S1-Pro-Multi-Sense-Zigbee\" title=\"S1-Pro-Multi-Sense-Zigbee Github\"\u003eSensy-One custom quirk\u003c\/a\u003e) or Zigbee2MQTT. The device is designed as a Zigbee End Device (does not act as a router\/repeater) with minimal network load, ensuring your Zigbee network performs optimally.\u003c\/p\u003e\u003ch4\u003ePlatform Compatibility\u003c\/h4\u003e\u003cp\u003eFully optimized for \u003cstrong\u003eHome Assistant\u003c\/strong\u003e via ZHA and Zigbee2MQTT. The S1 Pro Zigbee is primarily intended for HA users and offers full support for the official \u003ca rel=\"noopener\" title=\"Sensy-One Zone Editor\" href=\"https:\/\/github.com\/sensy-one\/home-assistant-addons\" target=\"_blank\"\u003eSensy-One Zone Editor integration with Heatmap functionality\u003c\/a\u003e. All sensor data and controls remain 100% local within your own network.\u003c\/p\u003e\u003ch4\u003ePower Supply and Energy\u003c\/h4\u003e\u003cp\u003eThe sensor operates on \u003cstrong\u003e5V USB-C\u003c\/strong\u003e and has a standard USB-C port at the bottom for cable mounting. Optionally, you can use the \u003ca title=\"S1 Pro Female USB-C Add-on\" href=\"https:\/\/slimhuisje.nl\/products\/sensy-one-s1-pro-female-usb-c-add-on\"\u003eS1 Pro Female USB-C Add-on\u003c\/a\u003e to place the sensor upright on a cabinet or desk, or the \u003ca rel=\"noopener\" title=\"S1 Pro Male USB-C Add-on\" href=\"https:\/\/slimhuisje.nl\/products\/sensy-one-s1-pro-male-usb-c-add-on\" target=\"_blank\"\u003eS1 Pro Male USB-C Add-on\u003c\/a\u003e to connect directly to a wall adapter without a cable.\u003c\/p\u003e\u003ch4\u003emmWave Presence Detection\u003c\/h4\u003e\u003cp\u003eThe \u003cstrong\u003eHi-Link LD2450 radar module\u003c\/strong\u003e offers 24 GHz mmWave detection with an adjustable range of 20 cm to 6 meters, a horizontal field of view of 120°, and a vertical range of approximately 70°. The sensor detects up to three people simultaneously and reports their exact position (in cm), distance, and movement speed (in cm\/s) every 0.5 seconds to Home Assistant. You can set up 3 polygon detection zones and 1 polygon exclusion zone (with a maximum of 8 points per polygon). Each zone has adjustable presence delays and motion thresholds, and supports both single-target and multi-target modes.\u003c\/p\u003e\u003ch4\u003eAir Quality with Bosch BME688\u003c\/h4\u003e\u003cp\u003eThe built-in \u003cstrong\u003eBosch BME688 sensor\u003c\/strong\u003e measures estimated CO₂ level (eCO₂), estimated VOC level (volatile organic compounds), air quality index (IAQ, from 0 to 500), gas resistance (in kΩ), temperature, humidity, and atmospheric pressure. The sensor provides early insight into changes in indoor air, allowing automations to intervene before comfort or concentration decreases. The temperature offset is easily adjustable via software.\u003c\/p\u003e\u003ch4\u003eOptional CO₂ Sensor (\u003ca rel=\"noopener\" title=\"S1 Pro CO2 sensor Add-on\" href=\"https:\/\/slimhuisje.nl\/products\/s1-pro-co2-add-on\" target=\"_blank\"\u003eSCD40 Add-on\u003c\/a\u003e)\u003c\/h4\u003e\u003cp\u003eFor applications requiring absolute accuracy, the S1 Pro supports the optional \u003ca rel=\"noopener\" title=\"S1 Pro CO2 Sensor Add-on\" href=\"https:\/\/slimhuisje.nl\/products\/s1-pro-co2-add-on\" target=\"_blank\"\u003eS1 Pro CO₂ Add-on\u003c\/a\u003e with the Sensirion SCD40 module. This NDIR sensor measures true CO₂ concentrations (up to 40,000 ppm) and connects directly to the S1 Pro PCB without soldering. The SCD40 also supports forced calibration and factory settings directly from Home Assistant.\u003c\/p\u003e\u003ch4\u003eAutomatic Sensor Compensation\u003c\/h4\u003e\u003cp\u003eThe S1 Pro sensor can be easily provided with a temperature offset from Home Assistant to adjust measurements to specific placement or environmental conditions. The BME688 and the optional SCD40 module can thus be perfectly calibrated for consistent measurement results.\u003c\/p\u003e\u003ch4\u003eAmbient Light Sensing\u003c\/h4\u003e\u003cp\u003eIntegrated ambient light measurement via the \u003cstrong\u003eLite-On LTR-381RGB-01 sensor\u003c\/strong\u003e measures the current light intensity in Lux. This allows lighting and shading automations to react naturally to changing daylight and cloud cover based on actual light values instead of fixed schedules.\u003c\/p\u003e\u003ch4\u003eVisual and Audible Feedback\u003c\/h4\u003e\u003cp\u003eA built-in \u003cstrong\u003eWS2812 RGB-LED\u003c\/strong\u003e and an \u003cstrong\u003eMLT8530 piezo buzzer\u003c\/strong\u003e provide immediate visual and clear audible feedback. If the Zigbee connection is lost, the LED gives a purple \"breathing\" signal. After reconnection, the stored status is automatically restored. All feedback can be fully controlled via Home Assistant automations, from subtle status indicators to clear alarms.\u003c\/p\u003e\u003ch4\u003ePhysical and Installation\u003c\/h4\u003e\u003cp\u003eThe housing is made of high-quality resin and specifically designed for minimal interference with mmWave signals, passive cooling, and optimal airflow past the environmental sensors.\u003cbr\u003eDimensions: 50 mm high, 35 mm wide, 25 mm deep.\u003cbr\u003eThe sensor has a standard USB-C port at the bottom and internal connectors for expansion with CO₂ and USB-C add-ons.\u003c\/p\u003e\u003ch4\u003eMounting Options (Add-ons)\u003c\/h4\u003e\u003cp\u003eThe S1 Pro supports various optional mounting adapters for flexible placement. With the \u003ca rel=\"noopener\" title=\"S1 Pro Corner Mount\" href=\"https:\/\/slimhuisje.nl\/products\/sensy-one-s1-pro-corner-ball-mount-add-on\" target=\"_blank\"\u003eS1 Pro Corner Ball Mount Add-on\u003c\/a\u003e, you can precisely position the sensor in 90-degree corners, while the \u003ca rel=\"noopener\" title=\"S1 Pro Wall Mount\" href=\"https:\/\/slimhuisje.nl\/products\/sensy-one-s1-pro-standard-ball-mount-add-on\" target=\"_blank\"\u003eS1 Pro Standard Ball Mount Add-on\u003c\/a\u003e allows for sleek mounting on any wall surface. For standing placement on a desk or dresser, use the \u003ca rel=\"noopener\" title=\"Female USB-C Add-on\" href=\"https:\/\/slimhuisje.nl\/products\/sensy-one-s1-pro-female-usb-c-add-on\" target=\"_blank\"\u003eS1 Pro Female USB-C Add-on\u003c\/a\u003e. The \u003ca rel=\"noopener\" title=\"Male USB-C Add-on\" href=\"https:\/\/slimhuisje.nl\/products\/sensy-one-s1-pro-male-usb-c-add-on\" target=\"_blank\"\u003eS1 Pro Male USB-C Add-on\u003c\/a\u003e allows direct connection to a wall adapter. For true CO₂ measurements, simply snap on the \u003ca rel=\"noopener\" title=\"CO2 Add-on\" href=\"https:\/\/slimhuisje.nl\/products\/s1-pro-co2-add-on\" target=\"_blank\"\u003eS1 Pro CO₂ Add-on\u003c\/a\u003e.\u003c\/p\u003e\u003ch4\u003eSoftware and Updates\u003c\/h4\u003e\u003cp\u003eNo ESPHome knowledge or Wi-Fi setup is required. For ZHA users, Sensy-One provides a custom quirk for seamless operation in Home Assistant. With the \u003cstrong\u003eSensy-One Zone Editor Add-on\u003c\/strong\u003e, you can also create interactive 2D and 3D floor plans, track live targets, analyze spatial heatmaps, and draw detection and exclusion zones. Any firmware updates and recovery can be easily performed via USB.\u003c\/p\u003e\u003ch4\u003eEnvironment and Durability\u003c\/h4\u003e\u003cp\u003eIntended for \u003cstrong\u003eindoor use\u003c\/strong\u003e in standard living and working spaces. The high-quality resin housing is durable and provides excellent heat dissipation. Not suitable for damp or very dusty environments such as bathrooms or workshops without additional protection.\u003c\/p\u003e\u003ch4\u003ePerformance and Zigbee Network Load\u003c\/h4\u003e\u003cp\u003eThe sensor is specifically designed for \u003cstrong\u003eminimal Zigbee network load\u003c\/strong\u003e, even with active multi-target tracking. The average network load remains well below 1% (based on the 250 kbit\/s IEEE 802.15.4 Zigbee data rate):\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eQuiet room: approx. 0.04% load\u003c\/li\u003e\n\u003cli\u003eNormal tracking of 1 person: approx. 0.46% – 0.65% load\u003c\/li\u003e\n\u003cli\u003eBusy activity with multiple people: approx. 1.10% load\u003c\/li\u003e\n\u003cli\u003eMaximum continuous load: approx. 1.80% load\u003c\/li\u003e\n\u003cli\u003eShort peak load during bursts: max. approx. 5.15%\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis leaves more than enough capacity for your other Zigbee devices in the network.\u003c\/p\u003e\u003ch4\u003eAir Quality Index (IAQ) Classification\u003c\/h4\u003e\u003cp\u003eThe BME688 provides an \u003cstrong\u003eair quality index (IAQ)\u003c\/strong\u003e that offers real-time insight into the indoor climate. The index provides clear, human-readable IAQ values and classifications in Home Assistant. The sensor detects VOCs from cooking fumes, cleaning products, off-gassing from furniture, and human presence, allowing ventilation systems to activate in a timely manner.\u003c\/p\u003e\u003ch4\u003eSafety and Privacy\u003c\/h4\u003e\u003cp\u003eThe sensor operates \u003cstrong\u003e100% locally via Zigbee\u003c\/strong\u003e. No data is sent to the cloud, and the sensor does not require Wi-Fi network passwords or external accounts. Your privacy is fully guaranteed.\u003c\/p\u003e\u003ch4\u003ePackage Contents\u003c\/h4\u003e\u003cp\u003eStandard delivery includes the \u003cstrong\u003eS1 Pro Multi Sense Zigbee edition\u003c\/strong\u003e consisting of:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eS1 Pro Multi Sense PCB (ESP32-C6)\u003c\/li\u003e\n\u003cli\u003eS1 Pro Multi Sense housing (Resin)\u003c\/li\u003e\n\u003cli\u003eHi-Link LD2450 mmWave radar module\u003c\/li\u003e\n\u003cli\u003eESD-safe packaging\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e* Optional add-ons (such as the CO₂ sensor, ball mounts, and USB-C adapters) are sold separately. A USB-C power cable and 5V adapter are not included.\u003c\/em\u003e\u003c\/p\u003e\u003ch4\u003eUse Cases\u003c\/h4\u003e\u003cp\u003eThe S1 Pro Zigbee is ideal for \u003cstrong\u003eHome Assistant users who have based their smart home on Zigbee\u003c\/strong\u003e and want reliable presence detection without burdening the Wi-Fi network. Thanks to mmWave technology, the sensor detects people even when they are stationary (e.g., on the couch or behind a desk). Perfect for controlling lighting, climate control, and monitoring indoor climate via ZHA or Zigbee2MQTT.\u003c\/p\u003e\u003ch4\u003ePros\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNative Zigbee connectivity (ZHA and Zigbee2MQTT) via powerful ESP32-C6 RISC-V processor\u003c\/li\u003e\n\u003cli\u003eExtremely low Zigbee network load (typically \u0026lt;1%), leaving ample capacity for other devices\u003c\/li\u003e\n\u003cli\u003eAdvanced mmWave detection (LD2450) with tracking of 3 people, position\/speed, and 4 configurable zones\u003c\/li\u003e\n\u003cli\u003e100% local: no Wi-Fi settings, cloud account, or ESPHome required\u003c\/li\u003e\n\u003cli\u003eBosch BME688 environmental sensor for eCO₂, VOC, IAQ, temperature, humidity, and atmospheric pressure\u003c\/li\u003e\n\u003cli\u003eOptional NDIR CO₂ sensor (SCD40 add-on) easily connectable without soldering\u003c\/li\u003e\n\u003cli\u003eFully compatible with the Sensy-One Zone Editor Add-on for 2D\/3D visualization and heatmaps\u003c\/li\u003e\n\u003cli\u003eRGB status LED and piezo buzzer for configurable visual and audible notifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCons\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOperates as a Zigbee End Device; does not act as a Zigbee router\/repeater to extend the network\u003c\/li\u003e\n\u003cli\u003eRequires a suitable Zigbee coordinator (such as Sonoff, SkyConnect, Zigate, etc.) connected to Home Assistant\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eManual and Support\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/sensy-one\/S1-Pro-Multi-Sense-Zigbee\" title=\"Sensy One S1 Pro Zigbee Github Manual\" target=\"_blank\"\u003eFind documentation and manual here (GitHub)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/sensy-one\/home-assistant-addons\" title=\"Sensy-One Zone Editor Add-on\" target=\"_blank\"\u003eSensy-One Zone Editor Home Assistant Add-on\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Sensy One - Discord Support\" href=\"https:\/\/discord.gg\/TB78Wprn66\" target=\"_blank\"\u003eNeed support? The Sensy-One team is active on Discord and happy to help!\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003ch5\u003eDoes the S1 Pro Multi Sense Zigbee work with Home Assistant?\u003c\/h5\u003e\u003cp\u003eYes, the sensor is designed for Home Assistant and works via \u003cstrong\u003eZHA\u003c\/strong\u003e (with the included custom quirk) or via \u003cstrong\u003eZigbee2MQTT\u003c\/strong\u003e. After putting the sensor in pairing mode, it will be immediately recognized by your Zigbee network.\u003c\/p\u003e\u003ch5\u003eHow do I pair and install the Zigbee sensor?\u003c\/h5\u003e\u003cp\u003eConnect the sensor to a 5V USB-C power supply. When the sensor is not connected to a Zigbee network, the built-in RGB-LED will emit a purple breathing light. Put your Zigbee coordinator in Home Assistant (ZHA or Zigbee2MQTT) into pairing mode to add the device. For zone configuration, you can use the Sensy-One Zone Editor add-on.\u003c\/p\u003e\u003ch5\u003eWhich network protocol does this version of the S1 Pro use?\u003c\/h5\u003e\u003cp\u003eThis version uses \u003cstrong\u003eZigbee (IEEE 802.15.4 at 2.4 GHz)\u003c\/strong\u003e via the ESP32-C6 chip. Are you looking for the Wi-Fi \/ ESPHome variant? Then check out the \u003ca href=\"https:\/\/slimhuisje.nl\/products\/sensy-one-s1-pro-multi-sense\" title=\"S1 Pro Wi-Fi\"\u003eS1 Pro Wi-Fi version\u003c\/a\u003e.\u003c\/p\u003e\u003ch5\u003eDoes the S1 Pro Zigbee act as a Zigbee Router or Repeater?\u003c\/h5\u003e\u003cp\u003eNo, the S1 Pro Zigbee is designed as a \u003cstrong\u003eZigbee End Device\u003c\/strong\u003e and does not act as a router\/repeater. This was deliberately done to keep the network impact minimal and prevent interference.\u003c\/p\u003e\u003ch5\u003eDoesn't continuous mmWave tracking burden my Zigbee network too much?\u003c\/h5\u003e\u003cp\u003eNo, the device is optimized for extremely low network impact. Even with heavy multi-target tracking, the network load remains around 1.10% (with a continuous maximum of 1.80%). This leaves more than enough capacity for your other Zigbee sensors and lights.\u003c\/p\u003e\u003ch5\u003eWhat is the range of the mmWave sensor?\u003c\/h5\u003e\u003cp\u003eThe Hi-Link LD2450 radar module has an adjustable range of \u003cstrong\u003e20 cm to 6 meters\u003c\/strong\u003e, with a horizontal field of view of 120° and a vertical range of approximately 70°. It can track up to 3 people simultaneously and reports position and speed every 0.5 seconds.\u003c\/p\u003e\u003ch5\u003eWhat is the difference between the BME688 and the optional SCD40 CO₂ sensor?\u003c\/h5\u003e\u003cp\u003eThe \u003cstrong\u003eBME688\u003c\/strong\u003e calculates an estimated CO₂ value (eCO₂) based on VOC (volatile organic compound) measurements, which is ideal for general air quality indication. The \u003cstrong\u003eSCD40\u003c\/strong\u003e (optional add-on) uses NDIR technology for \u003cstrong\u003etrue CO₂ measurements\u003c\/strong\u003e up to 40,000 ppm, which is perfect for spaces where exact CO₂ values are crucial (such as bedrooms and offices).\u003c\/p\u003e\u003ch5\u003eWhich add-ons are available for the S1 Pro Zigbee?\u003c\/h5\u003e\u003cp\u003eThere are five modular add-ons available: the \u003cstrong\u003eS1 Pro CO₂ Add-on\u003c\/strong\u003e (Sensirion SCD40), \u003cstrong\u003eS1 Pro Female USB-C Add-on\u003c\/strong\u003e (for standing placement), \u003cstrong\u003eS1 Pro Male USB-C Add-on\u003c\/strong\u003e (for direct plug-in to a power adapter), \u003cstrong\u003eS1 Pro Standard Ball Mount Add-on\u003c\/strong\u003e (for wall mounting), and \u003cstrong\u003eS1 Pro Corner Ball Mount Add-on\u003c\/strong\u003e (for corner mounting). All add-ons are plug-and-play and do not require soldering.\u003c\/p\u003e\u003ch5\u003eHow do I update the firmware of the Zigbee sensor?\u003c\/h5\u003e\u003cp\u003eFirmware updates and any recovery are performed via a USB-C connection to your computer. Consult the official \u003ca href=\"https:\/\/github.com\/sensy-one\/S1-Pro-Multi-Sense-Zigbee\" title=\"GitHub Sensy-One Zigbee\" target=\"_blank\"\u003eGitHub repository of the S1 Pro Zigbee\u003c\/a\u003e for the latest firmware files and instructions.\u003c\/p\u003e","brand":"Sensy-One","offers":[{"title":"Default Title","offer_id":55116343247190,"sku":"SENSY-S1-PRO-ZIGBEE","price":59.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/5921\/3398\/files\/S1ProFront.png?v=1769741628","url":"https:\/\/slimhuisje.nl\/en\/products\/sensy-one-s1-pro-multi-sense-zigbee","provider":"slimhuisje.nl","version":"1.0","type":"link"}