{"product_id":"sonoff-airguard-snzb-02m-temperature-and-humidity-sensor","title":"SONOFF AirGuard SNZB-02M Temperature and Humidity Sensor","description":"\u003cdiv style=\"font-size:1.1em;\"\u003e\n\u003ch2\u003eSONOFF AirGuard SNZB-02M\u003c\/h2\u003e\n\u003cdiv class=\"context-badges\"\u003e \u003cspan\u003eTemperature and humidity monitoring\u003c\/span\u003e \u003cspan\u003eConnection via control panel\u003c\/span\u003e \u003cspan\u003eNo WiFi connection\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003e The temperature and humidity sensor is intended for users who want to control the climate in a room and connect the device to their existing smart home via a control panel.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e Quickly obtain data for better well-being at home or in the office.\u003c\/li\u003e\n\u003cli\u003e Possibility to turn on automations, such as ventilation or heating, depending on changed conditions.\u003c\/li\u003e\n\u003cli\u003e Works as part of a larger smart home system when an appropriate hub is used.\u003c\/li\u003e\n\u003cli\u003e It does not use WiFi, which contributes to a lower load on the wireless network.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e\u003ch3\u003eSONOFF AirGuard SNZB-02M Temperature and Humidity Sensor\u003c\/h3\u003e\u003cp\u003e Improve your environment with the SONOFF AirGuard SNZB-02M smart sensor that monitors temperature, humidity and air pressure. The device offers 5 measurements in 1, including dew point and VPD calculations, and provides detailed information about the current indoor climate. Zigbee 3.0 communication allows you to integrate the sensor into your smart home system and create automated scenarios that respond to changes in environmental conditions. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"Round Sonoff sensor with orange accent and thermometer symbol on a gray background.\" src=\"https:\/\/assets.innpro.pl\/24615\/32355\/8-aebdfb56-705a-420f-956f-8eb52ff07159.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Comprehensive monitoring of environmental conditions\u003c\/h3\u003e\u003cp\u003e SONOFF AirGuard SNZB-02M allows you to monitor key environmental parameters in real time. The sensor measures temperature, humidity, and atmospheric pressure, and additionally calculates dew point and VPD values, providing a more complete picture of indoor conditions. Monitoring air pressure also allows you to observe changes that may indicate changes in weather conditions. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"White Sonoff temperature and humidity sensor, viewed from the front against a light background.\" src=\"https:\/\/assets.innpro.pl\/24615\/32355\/2-3ab20fe3-49eb-45fa-b2f7-282f4dd0b049.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Accurate measurements and quick alerts\u003c\/h3\u003e\u003cp\u003e High measurement accuracy allows you to detect even the smallest changes in the environment. The sensor measures temperature with an accuracy of ±0.2 °C, humidity with an accuracy of ±2% RH, and pressure with an accuracy of ±0.1 hPa. Users can set desired temperature, humidity, and pressure ranges and receive instant notifications in the app when these limits are exceeded, allowing them to quickly respond to changing conditions. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"A compact, round Sonoff sensor with holes, viewed from an angle.\" src=\"https:\/\/assets.innpro.pl\/24615\/32355\/3-70d1f38f-cea9-4195-bbc8-d0dfa89b03a7.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Zigbee smart automation\u003c\/h3\u003e\u003cp\u003e Support for the Zigbee 3.0 standard allows the sensor to connect to other smart home devices via a Zigbee hub. Based on current readings, you can create automated scenarios, such as turning on a fan, humidifier, air conditioner, or opening windows when certain conditions are detected. This solution allows you to automatically adapt your environment to your current needs. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"Sonoff sensor mounted on the wall in a bright, modern living room.\" src=\"https:\/\/assets.innpro.pl\/24615\/32355\/9-b5f2f88b-4fc1-4076-9023-008552fa021f.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Stable communication and long battery life\u003c\/h3\u003e\u003cp\u003e Zigbee 3.0 wireless communication ensures stable operation with compatible devices and allows flexible placement of the sensor in any desired location. It is powered by a single CR2477 battery, which provides more than 2 years of operation, so the device does not need frequent battery replacement. The absence of wires allows installation in various locations, such as shelves, corners, near windows or on ceilings. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"Sonoff sensor shown next to the orange box.\" src=\"https:\/\/assets.innpro.pl\/24615\/32355\/6-5d13f7b0-f556-46a0-a7b0-5d7ad3c4dbf3.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Wide range of uses in various spaces\u003c\/h3\u003e\u003cp\u003e SONOFF AirGuard SNZB-02M is ideal for any environment where monitoring indoor environmental conditions is important. It can be used in the living room, children's room, bathroom or greenhouse to maintain the appropriate temperature and humidity. Thanks to the automation functions, it can also support the management of devices responsible for ventilation, heating or humidity control. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"Round Sonoff sensor with QR code, mounted on a light blue surface.\" src=\"https:\/\/assets.innpro.pl\/24615\/32355\/7-d3121b7e-c6cd-42a1-b30f-8a8bb532eccf.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Compact design and easy installation\u003c\/h3\u003e\u003cp\u003e The small body measuring 45 × 45 × 17.6 mm allows the sensor to be installed in many places without taking up much space. The device weighs 27.3 g including the battery and is made of PC plastic. The kit includes mounting accessories such as a metal plate, 3M double-sided adhesive tape and a mounting screw, allowing you to customize the installation method to the chosen location. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"The back of the Sonoff sensor housing with technical specifications and markings.\" src=\"https:\/\/assets.innpro.pl\/24615\/32355\/5-68808f58-d6bf-4af6-bf37-2f8ea1f8d5fc.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Included in the kit\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e SONOFF Temperature and Humidity Sensor\u003c\/li\u003e\n\u003cli\u003e Battery CR2477\u003c\/li\u003e\n\u003cli\u003e Metal mounting plate\u003c\/li\u003e\n\u003cli\u003e 3M double-sided adhesive tape\u003c\/li\u003e\n\u003cli\u003e Fixing screw\u003c\/li\u003e\n\u003cli\u003e Key\u003c\/li\u003e\n\u003cli\u003e User manual\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"table-wrapper\"\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e Manufacturer\u003c\/th\u003e\n\u003ctd\u003e SONOFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Product series\u003c\/th\u003e\n\u003ctd\u003e AirGuard series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Model\u003c\/th\u003e\n\u003ctd\u003e SNZB-02M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Wireless connectivity\u003c\/th\u003e\n\u003ctd\u003e Zigbee 3.0 IEEE 802.15.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Required accessories\u003c\/th\u003e\n\u003ctd\u003e Zigbee node\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Battery\u003c\/th\u003e\n\u003ctd\u003e CR2477\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Supply voltage\u003c\/th\u003e\n\u003ctd\u003e 3.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Net weight\u003c\/th\u003e\n\u003ctd\u003e 27.3 g (with battery)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Housing material\u003c\/th\u003e\n\u003ctd\u003e Personal computer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Color\u003c\/th\u003e\n\u003ctd\u003e White\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Dimensions\u003c\/th\u003e\n\u003ctd\u003e 45 × 45 × 17.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Temperature accuracy\u003c\/th\u003e\n\u003ctd\u003e ±0.2°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Humidity accuracy\u003c\/th\u003e\n\u003ctd\u003e ±2% relative humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Pressure accuracy\u003c\/th\u003e\n\u003ctd\u003e ±0.1 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Working pressure range\u003c\/th\u003e\n\u003ctd\u003e 700–1100 hPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Operating temperature\u003c\/th\u003e\n\u003ctd\u003e from -20°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Operating humidity\u003c\/th\u003e\n\u003ctd\u003e 5-95% relative humidity, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Working environment\u003c\/th\u003e\n\u003ctd\u003e Indoors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Certificates\u003c\/th\u003e\n\u003ctd\u003e CE\/FCC\/RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cbr\u003e Warranty: months\u003cbr\u003e\u003cbr\u003e The text is machine translated.\u003c\/p\u003e\u003cbr\u003e\r\n\u003cbr\u003e\u003cbr\u003e\u003ch2\u003eIt is important to know\u003c\/h2\u003e\u003cp\u003e When choosing a smart temperature and humidity sensor, it is most important to understand its place in the existing ecosystem and how it will connect. Before purchasing, ask yourself whether you already have a suitable control panel and what integration options you need for your smart home. Particular attention should be paid to the requirements for additional equipment and the long-term possibility of expanding the system, which is not evident from the basic technical data.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e This sensor only works as part of a system with a central control unit (e.g. ZigBee hub), so it is not suitable for standalone use or without a suitable existing control unit.\u003c\/li\u003e\n\u003cli\u003e Connecting via ZigBee means lower load on the home WiFi network and greater reliability in larger smart systems, but requires a dedicated hub.\u003c\/li\u003e\n\u003cli\u003e This type of solution is more effective for easily upgrading a home with multiple sensors, but for a smaller system or completely standalone use, prior equipment verification is required.\u003c\/li\u003e\n\u003cli\u003e It delivers suitable results where local autonomy and scalability are important, but requires a bit more planning during initial setup.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003cem\u003eSource of editorial recommendations: ENAA guides and team experience.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003e In practice\u003c\/h2\u003e\u003ch3\u003e 🟢 Monitoring temperature and humidity in multiple rooms\u003c\/h3\u003e\u003cp\u003e The sensor is excellent for monitoring the living environment in different rooms, as it allows centralized monitoring via a suitable smart home system.\u003c\/p\u003e\u003ch3\u003e 🟡 Use without a pre-installed control panel\u003c\/h3\u003e\u003cp\u003e The sensor is not suitable for direct use if you do not have an existing ZigBee control panel - without it, it cannot be connected or included in automation.\u003c\/p\u003e\u003ch3\u003e 🟢 Operation in larger or more complex smart homes\u003c\/h3\u003e\u003cp\u003e ZigBee connectivity contributes to a stable and scalable system where you want to manage multiple different devices and sensors in one place.\u003c\/p\u003e\u003ch3\u003e 🟡 First steps in a smart home\u003c\/h3\u003e\u003cp\u003e For beginners, using this sensor is possible, but it will require an additional investment in a control panel - especially suitable if you plan to expand the system.\u003c\/p\u003e\u003ch2\u003e Answers to frequently asked questions\u003c\/h2\u003e\u003ch3\u003e Does the sensor work without a special hub\/controller?\u003c\/h3\u003e\u003cp\u003e No, it requires a connection to an appropriate control panel or ZigBee hub to function.\u003c\/p\u003e\u003ch3\u003e Can the sensor be integrated with popular smart systems?\u003c\/h3\u003e\u003cp\u003e The possibility of integration depends on the support of your control panel - check compatibility with the ecosystem before purchasing.\u003c\/p\u003e\u003ch3\u003e Is the sensor occupying my WiFi network?\u003c\/h3\u003e\u003cp\u003e No, it uses the ZigBee protocol for connection and does not connect directly to a WiFi network.\u003c\/p\u003e\u003ch3\u003e Is the sensor suitable for monitoring multiple rooms?\u003c\/h3\u003e\u003cp\u003e Yes, in connection with the control center, you can monitor data from multiple rooms at the same time.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e\u003cbr \/\u003e\n{\u003cbr \/\u003e\n  \"@context\": \"https:\/\/schema.org\",\u003cbr \/\u003e\n  \"@type\": \"FAQPage\",\u003cbr \/\u003e\n  \"mainEntity\": [\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Ali senzor deluje brez posebnega huba\/centrale?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"Ne, za delovanje potrebuje povezanost z ustrezno centralo oziroma ZigBee hubom.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    },\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Ali je mogoče senzor integrirati s popularnimi pametnimi sistemi?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"Možnost integracije je odvisna od podpore vaše centrale – preverite kompatibilnost z ekosistemom pred nakupom.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    },\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Ali zaseda senzor moje WiFi omrežje?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"Ne, za povezavo uporablja ZigBee protokol in ne povezuje se neposredno na WiFi omrežje.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    },\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Je senzor primeren za nadzor več prostorov?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"Da, v povezavi s centralo lahko podatke spremljate iz večih prostorov hkrati.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    }\u003cbr \/\u003e\n  ]\u003cbr \/\u003e\n}\u003cbr \/\u003e\n\u003c\/script\u003e\u003cp style=\"font-size: 0.9em; color: #666;\"\u003eDescription updated: October 2026\u003c\/p\u003e\u003ch2\u003e Read also\u003c\/h2\u003e\u003cp\u003e If you are still deciding, the following content may also be helpful.\u003c\/p\u003e\u003cp\u003e \u003cstrong\u003eBest products\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e \u003ca href=\"https:\/\/www.enaa.com\/najboljsi\/najboljsi-pametni-senzorji-in-detektorji\"\u003eBest Smart Sensors and Detectors 2026\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e \u003cstrong\u003eProducts for various purposes\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e \u003ca href=\"https:\/\/www.enaa.com\/izbira\/pametni-senzorji-in-detektorji-za-avtomatizacijo-doma\"\u003eSmart sensors and detectors for home automation\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e \u003ca href=\"https:\/\/www.enaa.com\/izbira\/pametni-senzorji-in-detektorji-za-nadzor-vikenda-na-daljavo\"\u003eSmart sensors and detectors for remote weekend monitoring\u003c\/a\u003e\u003c\/p\u003e\u003ch2\u003e Why buy from ENAA?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e Product descriptions are neutral, without deception or hidden costs - you make your own decision based on verified information.\u003c\/li\u003e\n\u003cli\u003e More than 100 comprehensive shopping guides and the best online user experience in Slovenia for modern home furnishing.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sonoff","offers":[{"title":"Default Title","offer_id":58723535389003,"sku":null,"price":20.75,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/3457\/3643\/files\/temperature_and_humidity_sensor_sonoff_airguard_snzb_02m_20265056.webp?v=1791309285","url":"https:\/\/enaa.eu\/products\/sonoff-airguard-snzb-02m-temperature-and-humidity-sensor","provider":"Enaa","version":"1.0","type":"link"}