{"product_id":"sonoff-airguard-th-pressure","title":"SONOFF AirGuard TH Pressure","description":"\u003cp\u003e\u003cstrong\u003eSONOFF AirGuard TH Pressure (SNZB-02M)\u003c\/strong\u003e is a next-generation environmental sensor that goes far beyond standard climate monitoring. While basic sensors only monitor temperature and humidity, the SNZB-02M adds a highly accurate air pressure sensor. By combining these three measurements in real time, it automatically calculates the Dew Point and Vapor Pressure Deficit (VPD), giving you a complete, professional picture of your indoor environment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003e5-in-1 Climate Monitoring:\u003c\/b\u003e Measures temperature, relative humidity, and barometric pressure. Using these readings, the app instantly calculates the dew point (to warn you before condensation forms on walls, which causes mold) and VPD (the best metric for optimizing plant growth in indoor greenhouses).\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eUltra-fast 5-second refresh rate:\u003c\/b\u003e Unlike older sensors that report data only every few minutes to save battery, the SNZB-02M updates its readings every 5 seconds. You will know immediately when a window is opened, when a bathroom gets steamy, or when a humidor loses humidity.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eWeather Trend Forecasting:\u003c\/b\u003e By monitoring air pressure (700 to 1100 hPa), you can build smart home automations that react to weather changes before they even happen. A rapid drop in pressure can trigger notifications to close skylights before a storm.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eHigh Precision:\u003c\/b\u003e Delivers professional-grade accuracy with deviations of only ±0.2 °C for temperature, ±2% RH for humidity, and ±0.1 hPa for air pressure.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003e2-Year Battery Life:\u003c\/b\u003e Despite the rapid 5-second refresh rate, the sensor uses an ultra-efficient EFR32MG22 Zigbee chip and a massive CR2477 coin cell battery, ensuring over two years of continuous operation.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eUniversal Zigbee 3.0 Compatibility:\u003c\/b\u003e Integrates seamlessly into local smart home platforms such as Home Assistant (via ZHA or Zigbee2MQTT), eWeLink, and SmartThings.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\n\u003cthead\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eModel\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003eSNZB-02M (AirGuard Series)\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eWireless Protocol\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003eZigbee 3.0 (IEEE 802.15.4)\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eMeasured Values\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003eTemperature, humidity, air pressure\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eCalculated Values\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003eDew point, vapor pressure deficit (VPD)\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eTemperature Range \/ Accuracy\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003e-20 °C to +60 °C \/ ±0.2 °C\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eHumidity Range \/ Accuracy\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003e5% to 95% RH (non-condensing) \/ ±2% RH\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePressure Range \/ Accuracy\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003e700 to 1100 hPa \/ ±0.1 hPa\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eData Refresh Rate\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003eEvery 5 seconds\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePower Supply\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003e1x CR2477 3V battery (included)\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eEstimated Battery Life\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u0026gt; 2 years\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePlatform Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003eHome Assistant, Zigbee2MQTT, ZHA, eWeLink, SmartThings\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eDimensions\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003e45 mm × 45 mm × 17.6 mm\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eWeight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003e27.3 g (including battery)\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eHousing Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\n\u003ctd\u003e\u003cspan\u003eWhite polycarbonate (PC)\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003cp\u003e\u003cb\u003ePackage Contents\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eSONOFF AirGuard TH Pressure Sensor (SNZB-02M)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e1x CR2477 battery (pre-installed)\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e3M double-sided adhesive mounting pad\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003eQuick Start Guide\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"SONOFF","offers":[{"title":"Default Title","offer_id":54869820080466,"sku":null,"price":20.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1114\/7123\/1314\/files\/SNZB-02M-01.webp?v=1790589959","url":"https:\/\/shop.dmitrix.eu\/en\/products\/sonoff-airguard-th-pressure","provider":"Dmitrix","version":"1.0","type":"link"}