{"product_id":"sonoff-airguard-th-snzb-02dr2-zigbee-lcd-temperature-and-humidity-sensor","title":"Sonoff AirGuard TH SNZB-02DR2 ZigBee LCD Temperature and Humidity Sensor","description":"\u003cdiv style=\"font-size:1.1em;\"\u003e\n\u003ch2\u003eSonoff AirGuard TH SNZB-02DR2 ZigBee LCD\u003c\/h2\u003e\n\u003cdiv class=\"context-badges\"\u003e \u003cspan\u003eFor ZigBee smart home with central unit\u003c\/span\u003e \u003cspan\u003eTemperature and humidity measurement\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003e The temperature and humidity monitoring sensor is intended for users who want to precisely control their living environment and automate the operation of devices via a ZigBee control center.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e The clear LCD display allows for quick data checking directly in the room.\u003c\/li\u003e\n\u003cli\u003e Connection to a ZigBee control center allows integration into an existing smart home and automation.\u003c\/li\u003e\n\u003cli\u003e Adapted for use in various spaces, such as bedrooms, children's rooms or basements.\u003c\/li\u003e\n\u003cli\u003e Helps maintain optimal conditions for comfort and protection against excessive moisture or dryness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e\u003ch3\u003eZigBee LCD temperature and humidity sensor Sonoff AirGuard TH SNZB-02DR2\u003c\/h3\u003e\u003cp\u003e Sonoff AirGuard TH SNZB-02DR2 is a smart ZigBee temperature and humidity sensor with a large 3.6-inch LCD display that displays current conditions, daily maximum and minimum values, and air comfort level in real time. It combines laboratory accuracy (±0.2 °C \/ ±2% relative humidity), modern wireless connectivity, and energy-efficient battery operation in one compact device. With it, you always know whether a room has a healthy microclimate - no guesswork, no assumptions, no unnecessary complications. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"The Sonoff AirGuard TH sensor stands on a wooden shelf and displays the temperature and humidity on a large LCD screen.\" src=\"https:\/\/assets.innpro.pl\/19812\/26403\/7.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Clear and large 3.6-inch LCD screen\u003c\/h3\u003e\u003cp\u003e The clear, high-contrast display is designed to make the most important information visible from a distance. One glance is enough to check the temperature, humidity, minimum\/maximum values for the last 24 hours and the graphic comfort indicator. There’s no need to open the app or reach for your phone – the information is always at your fingertips, exactly when you need it. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"An elderly man looks at a temperature and humidity sensor mounted on a dresser in a bright room.\" src=\"https:\/\/assets.innpro.pl\/19812\/26403\/3.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Precise high-end sensor – Sensirion SHT40\u003c\/h3\u003e\u003cp\u003e At the heart of the device is the professional Sensirion SHT40 sensor, known for its industrial and measurement applications. It provides extremely stable and reliable readings, which translates into real benefits: better sleeping conditions, healthier air for children, and protection of plants, food and wine from excessive humidity. This device measures precisely – because there is no room for chance when it comes to comfort. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"The Sonoff sensor is unfolded, showing the electronics and space for two AAA batteries in the housing.\" src=\"https:\/\/assets.innpro.pl\/19812\/26403\/4.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e ZigBee 3.0 – smart automation without cables\u003c\/h3\u003e\u003cp\u003e Thanks to ZigBee 3.0 connectivity, the sensor works stably, responds quickly, and consumes minimal energy. Once connected to the interface, you can monitor data in the app, set alerts, and create automations – e.g. turning on a humidifier when the air is too dry, or ventilation when the humidity is excessive. This is a smart home that takes care of your comfort before you even notice a problem. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"Two sensors that monitor the temperature outside and at the entrance to the house with a preview of the data on the screen.\" src=\"https:\/\/assets.innpro.pl\/19812\/26403\/12.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Data history and analytics\u003c\/h3\u003e\u003cp\u003e AirGuard TH records measurements and presents them in the form of clear graphs, allowing you to track changes over time - with minute-by-minute accuracy. Daily, weekly and multi-month statistics are available, as well as information on dew point and VPD. It is a practical tool that helps you better plan ventilation, heating or watering plants and effectively prevent mold and excessive humidity. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"The smartphone in hand displays an app with temperature and humidity graphs and a history of measurements.\" src=\"https:\/\/assets.innpro.pl\/19812\/26403\/9.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Works with your smart home system\u003c\/h3\u003e\u003cp\u003e The sensor seamlessly integrates with popular platforms and hubs: Sonoff, Home Assistant, Zigbee2MQTT, SmartThings, as well as voice assistants like Alexa and Google Home, and the Matter Bridge ecosystem. You can use your voice to check the temperature, view data remotely, and turn on devices from anywhere. This gives you complete freedom and flexibility regardless of the ecosystem you choose. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"A woman checks the air parameters in the app, while the sensor stands on a lit shelf in the kitchen.\" src=\"https:\/\/assets.innpro.pl\/19812\/26403\/2.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Proximity mode – use even without a passage\u003c\/h3\u003e\u003cp\u003e Don't have a ZigBee hub? No problem. In proximity mode, you can connect directly to your smartphone via Bluetooth to check current parameters, calibrate the sensor, change °C\/°F units, or export data. This is the ideal solution for those who want to start with simple monitoring and later expand the system with automation. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"The living room has air conditioning and an air purifier, which is automatically controlled by a temperature and humidity sensor.\" src=\"https:\/\/assets.innpro.pl\/19812\/26403\/5.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Compact design and versatile use\u003c\/h3\u003e\u003cp\u003e The slim, durable PC+ABS housing, powered by two AAA batteries, and the ability to stand or hang make the AirGuard TH suitable for literally anywhere – in a bedroom, nursery, greenhouse, pantry, basement, warehouse or office. The wide operating range (from -20°C to 60°C, 5-95% relative humidity) ensures reliability in a variety of conditions. It is a small device that gives you excellent control over the comfort and safety of your environment every day. \u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"The Sonoff sensor is placed on a nightstand in the bedroom next to the bed, with visible temperature and humidity readings.\" src=\"https:\/\/assets.innpro.pl\/19812\/26403\/8.jpg\"\u003e\u003c\/p\u003e\u003ch3\u003e Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e ZigBee LCD Sonoff AirGuard TH SNZB-02DR2 temperature and humidity sensor\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\u003ch3\u003e\u003c\/h3\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 Model\u003c\/th\u003e\n\u003ctd\u003e SNZB-02DR2 (AirGuard TH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Device type\u003c\/th\u003e\n\u003ctd\u003e Smart temperature and humidity sensor (ZigBee + Bluetooth)\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) + Bluetooth (proximity mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Display\u003c\/th\u003e\n\u003ctd\u003e 3.6-inch high-contrast LCD screen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Data displayed on the screen\u003c\/th\u003e\n\u003ctd\u003e Current temperature\u003cbr\u003e Current humidity\u003cbr\u003e Min.\/max. 24 hours\u003cbr\u003e Comfort index\u003cbr\u003e Battery status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Measuring sensor\u003c\/th\u003e\n\u003ctd\u003e Sensirion SHT40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Temperature measurement accuracy\u003c\/th\u003e\n\u003ctd\u003e ±0.2°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Humidity measurement accuracy\u003c\/th\u003e\n\u003ctd\u003e ±2% relative humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Temperature measurement range\u003c\/th\u003e\n\u003ctd\u003e -20°C ~ 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Humidity measurement range\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 Temperature units\u003c\/th\u003e\n\u003ctd\u003e °C \/ °F (switchable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Data logging\u003c\/th\u003e\n\u003ctd\u003e Measurement history\u003cbr\u003e graphs, min\/max\u003cbr\u003e daily and long-term statistics (up to about 6 months in the app)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Additional analyses in the application\u003c\/th\u003e\n\u003ctd\u003e Dew point, VPD, comfort level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Notifications\u003c\/th\u003e\n\u003ctd\u003e Warnings about exceeding temperature and humidity thresholds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Power supply\u003c\/th\u003e\n\u003ctd\u003e 3.0 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Battery type\u003c\/th\u003e\n\u003ctd\u003e 2 × AAA \/ LR03 1.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Microcontroller (MCU)\u003c\/th\u003e\n\u003ctd\u003e TLSR8656F512ET32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Housing material\u003c\/th\u003e\n\u003ctd\u003e PC + ABS\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 95 × 70 × 18.2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e Weight\u003c\/th\u003e\n\u003ctd\u003e 99.3 g (with batteries)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cbr\u003e Warranty: 12 months\u003cbr\u003e\u003cbr\u003e The text is machine translated.\u003c\/p\u003e\u003cbr\u003e\r\n\u003cbr\u003e\u003cbr\u003e\u003ch2\u003eSame summary\u003c\/h2\u003e\u003cp\u003e The Sonoff AirGuard TH SNZB-02DR2 ZigBee LCD temperature and humidity sensor is suitable for anyone who wants to have constant control over the microclimate in their home or office and is looking for a solution as part of a larger smart system. Using the ZigBee protocol and LCD display, it allows integration into centralized systems, but requires an appropriate control panel to operate. It is less suitable for users who would like independent, quick installation without additional equipment or an Internet connection via WiFi. The key advantage of this model is accurate monitoring of room conditions and the possibility of use in automated smart home scenarios.\u003c\/p\u003e\u003cp\u003e \u003cem\u003eRecommendation source: Enaa guides and team experience.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003e User view\u003c\/h2\u003e\u003cp\u003e Typical users of this type of smart sensor are those who care about air quality control in their home, children's room or work area. In practice, temperature and humidity control is convenient for automatically adjusting heating, air conditioning or humidifiers in conjunction with other smart devices, especially if a ZigBee base is already in place. Such solutions are common in locations where comfort and energy optimization are a priority, such as in smart homes and for users who value long-term data reliability.\u003c\/p\u003e\u003cp\u003e Users often choose \u003ca href=\"https:\/\/www.enaa.com\/znamka\/sonoff\"\u003eSonoff\u003c\/a\u003e products because of their recognition, affordability, and the ability to easily expand their smart home within a unified ecosystem.\u003c\/p\u003e\u003ch2\u003e Why buy at Enaa\u003c\/h2\u003e\u003cp\u003e At Enaa, you can choose from proven smart sensors in various configurations and choose solutions from renowned brands, making it easy to integrate devices in your home. In addition, Enaa offers clearly categorized products, making it easier to compare products based on ecosystem compatibility or your home's needs.\u003c\/p\u003e\u003ch2\u003e Answers to frequently asked questions\u003c\/h2\u003e\u003ch3\u003e Does this sensor work without an additional ZigBee hub?\u003c\/h3\u003e\u003cp\u003e No, a ZigBee hub is required for proper operation, as the sensor itself is not a standalone unit and connects via the ZigBee network.\u003c\/p\u003e\u003ch3\u003e Where can the sensor be installed and what types of rooms is it best suited for?\u003c\/h3\u003e\u003cp\u003e The sensor is intended for use indoors, such as living rooms, bedrooms, study rooms or rooms where you want to monitor the climate. It is not suitable for use outdoors or in very humid environments, such as bathrooms, without proper protection.\u003c\/p\u003e\u003ch3\u003e Is the sensor only compatible with Sonoff products or can I also use it with devices from other manufacturers?\u003c\/h3\u003e\u003cp\u003e Since it is based on the ZigBee protocol, it can also be integrated with other ZigBee-enabled devices and has an open way to add additional sensors. We recommend that you check compatibility with your smart home control panel before purchasing.\u003c\/p\u003e\u003ch3\u003e What does the LCD display on the sensor mean?\u003c\/h3\u003e\u003cp\u003e The LCD display on the sensor allows you to monitor basic temperature and humidity information directly on the device itself, without the need to check the data in the app.\u003c\/p\u003e\u003ch3\u003e What is the advantage of using ZigBee sensors over WiFi versions?\u003c\/h3\u003e\u003cp\u003e ZigBee sensors in larger systems enable lower energy consumption and centralized management, which is especially convenient with many connected devices in a smart home.\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 ta senzor deluje brez dodatne ZigBee centrale?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"Ne, za pravilno delovanje je potrebna ZigBee centrala, saj senzor sam po sebi ni samostojna enota in se povezuje preko ZigBee omrežja.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    },\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Kje se senzor lahko namesti in za kakšne prostore je najbolj primeren?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"Senzor je namenjen uporabi v notranjih prostorih, kot so dnevne sobe, spalnice, delovne sobe ali prostori, kjer želite spremljati klimo. Ni primeren za uporabo zunaj ali v zelo vlažnih okoljih, kot so kopalnice brez ustrezne zaščite.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    },\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Je senzor združljiv le z izdelki Sonoff ali ga lahko uporabljam tudi z napravami drugih proizvajalcev?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"Ker temelji na ZigBee protokolu, ga je mogoče integrirati tudi z drugimi napravami, ki podpirajo ZigBee in imajo odprt način dodajanja dodatnih senzorjev. Svetujemo, da pred nakupom preverite združljivost s svojo centralo za pametni dom.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    },\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Kaj pomeni LCD prikazovalnik na senzorju?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"LCD zaslon na senzorju omogoča, da lahko osnovne informacije o temperaturi in vlažnosti spremljate neposredno na sami napravi, brez potrebe po preverjanju podatkov v aplikaciji.\"\u003cbr \/\u003e\n      }\u003cbr \/\u003e\n    },\u003cbr \/\u003e\n    {\u003cbr \/\u003e\n      \"@type\": \"Question\",\u003cbr \/\u003e\n      \"name\": \"Kakšna je prednost uporabe ZigBee senzorjev pred WiFi različicami?\",\u003cbr \/\u003e\n      \"acceptedAnswer\": {\u003cbr \/\u003e\n        \"@type\": \"Answer\",\u003cbr \/\u003e\n        \"text\": \"ZigBee senzorji v večjih sistemih omogočajo manjšo porabo energije in centralizirano upravljanje, kar je posebno priročno pri številnih povezanih napravah v pametnem domu.\"\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: April 2026\u003c\/p\u003e","brand":"Sonoff","offers":[{"title":"Default Title","offer_id":58953545089355,"sku":null,"price":13.48,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/3457\/3643\/files\/sonoff_airguard_th_snzb_02dr2_zigbee_lcd_temperature_and_humidity_sensor_20258307.jpg?v=1792673393","url":"https:\/\/enaa.eu\/products\/sonoff-airguard-th-snzb-02dr2-zigbee-lcd-temperature-and-humidity-sensor","provider":"Enaa","version":"1.0","type":"link"}