{"product_id":"sonoff-airguard-e-ink-zigbee-temperature-and-humidity-sensor","title":"Sonoff AirGuard E-Ink Zigbee Temperature and Humidity Sensor","description":"\u003cp\u003eA crisp e-paper temperature and humidity sensor - easy to read from almost any angle.\u003c\/p\u003e\n\u003cp\u003eThis sensor monitors temperature and humidity and reports back to your smart home system, so you'll know when a room is getting too toasty, too chilly or too damp. Keeping humidity in check helps head off condensation and mould, and spotting rooms that run hot or cold makes it easier to heat and ventilate your home sensibly.\u003c\/p\u003e\n\u003cp\u003eThe 2.9\" display stays readable even in bright sunlight, and can also show the time, date, weather and readings from a second sensor (when connected to Home Assistant or a Sonoff Zigbee hub). Press the button to see the last six hours of history on screen, no app required. It runs on two AAA batteries (included) for 8+ months when connected.\u003c\/p\u003e\n\n\u003cp style=\"padding: 0.5em; border: 2px solid orange;\"\u003eThis is a Zigbee device, so you'll need a compatible hub to use it with your smart home system - it won't connect directly to your Wi-Fi. If you don't have a Zigbee hub it will still show temperature, humidity and the 6-hour history.\u003c\/p\u003e\n\n\u003ch3\u003eGet Smart, Automate!\u003c\/h3\u003e\n\u003cp\u003eThis is a smart sensor, so the fun really begins when you connect it to your home automation system.\u003c\/p\u003e\n\u003cp\u003eSet up rules to switch on a dehumidifier when the bathroom gets steamy, or a fan when the office starts to bake. It can also act as an external temperature source for Sonoff's latest \u003ca href=\"\/products\/sonoff-gen2-zigbee-thermostatic-radiator-valve\"\u003esmart radiator valves\u003c\/a\u003e, so your heating responds to the temperature where you're actually sitting, rather than the warm spot right next to the radiator. Depending on your platform, you can dig into historical data to see how each room behaves through the seasons.\u003c\/p\u003e\n\u003cp\u003ePair it with a Sonoff Zigbee hub such as the \u003ca href=\"\/products\/sonoff-zigbee-bridge\"\u003eZBBridge-P\u003c\/a\u003e, \u003ca href=\"\/products\/nspanel-pro-smart-home-control-panel\"\u003eNSPanel Pro\u003c\/a\u003e or \u003ca href=\"\/products\/sonoff-smart-home-hub-ihost\"\u003eiHost\u003c\/a\u003e and check readings from anywhere with the eWeLink app. It also works with Home Assistant on a Raspberry Pi or \u003ca href=\"\/products\/home-assistant-green\"\u003eHome Assistant Green\u003c\/a\u003e (with a Zigbee adapter), and other Zigbee 3.0 hubs including SmartThings and some Amazon Echo devices.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.9\" e-paper display:\u003c\/strong\u003e Paper-like screen with a nearly 180° viewing angle that stays clear even in bright sunshine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll the essentials at a glance:\u003c\/strong\u003e Shows temperature, humidity, time, date, weather and comfort status, in °C or °F (double-press the button to switch).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-accuracy sensing:\u003c\/strong\u003e A Sensirion sensor gives ±0.2°C temperature and ±2% RH humidity accuracy, refreshing every five seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote sensor display:\u003c\/strong\u003e Show readings from another Sonoff sensor so you can check on the nursery or the greenhouse without getting up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible placement:\u003c\/strong\u003e Fold-out stand, built-in magnet, wall hanging slot or adhesive mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTech Specs\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSNZB-02UL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCU\u003c\/td\u003e\n\u003ctd\u003eTLSR8258\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e3V (2x 1.5V AAA batteries)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery model\u003c\/td\u003e\n\u003ctd\u003eLR03 AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery life\u003c\/td\u003e\n\u003ctd\u003e8+ months connected, 15+ months standalone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e2.9\" E-Paper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWireless connection\u003c\/td\u003e\n\u003ctd\u003eZigbee (IEEE 802.15.4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e91g (including batteries)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e99.1x51.1x18.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCasing material\u003c\/td\u003e\n\u003ctd\u003ePC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplicable place\u003c\/td\u003e\n\u003ctd\u003eIndoor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking temperature\u003c\/td\u003e\n\u003ctd\u003e0°C~50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.2°C; ±0.4°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking humidity\u003c\/td\u003e\n\u003ctd\u003e5~95% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity accuracy\u003c\/td\u003e\n\u003ctd\u003e±2% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eCE\/FCC\/RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFCC ID\u003c\/td\u003e\n\u003ctd\u003e2APN5-SNZB02UL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eResources\u003c\/h3\u003e\n\u003cp\u003eCheck out the \u003ca href=\"https:\/\/help.sonoff.tech\/docs\/SNZB-02UL\" target=\"_blank\" rel=\"noopener\"\u003eSNZB-02UL knowledge centre\u003c\/a\u003e for technical details, compatibility, troubleshooting and setup tips.\u003c\/p\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUsing Home Assistant? Temperature and humidity readings worked out of the box for us with ZHA, but the remote sensor display and weather data needed SONOFF's \u003ca href=\"https:\/\/help.sonoff.tech\/docs\/SNZB-02UL\" target=\"_blank\" rel=\"noopener\"\u003econfiguration files\u003c\/a\u003e loading. Built-in support for these features is on the way.\u003c\/li\u003e\n\u003cli\u003eLike all e-paper displays, the screen may briefly flash when it refreshes, and it'll keep showing its last image even with the batteries removed. That's perfectly normal!\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat is Zigbee?\u003c\/h3\u003e\n\u003cp\u003eZigbee is a low-power wireless standard made specifically for smart home gadgets like sensors, switches and lights. It sips power so it's perfect for battery-powered devices that need to keep going for months (or years) between battery swaps.\u003c\/p\u003e\n\u003cp\u003eZigbee devices form a mesh network, with mains-powered devices like smart plugs and bulbs passing messages along for their neighbours. The more devices you add, the stronger and further-reaching your network gets.\u003c\/p\u003e\n\u003cp\u003eIt also works locally, so your devices keep chatting to your hub even if your internet decides to take the day off. That means snappier responses, better reliability and improved privacy. It's supported by loads of manufacturers too, so mixing and matching brands is no problem.\u003c\/p\u003e\n\u003cp\u003eWant to learn more? Check out the \u003ca href=\"https:\/\/csa-iot.org\/all-solutions\/zigbee\/\" target=\"_blank\" rel=\"noopener\"\u003eofficial Connectivity Standards Alliance website\u003c\/a\u003e.\u003c\/p\u003e","brand":"Sonoff","offers":[{"title":"Default Title","offer_id":56518400770427,"sku":"SNZB-02UL","price":18.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/SNZB-02UL.jpg?v=1792501474","url":"https:\/\/shop.pimoroni.com\/products\/sonoff-airguard-e-ink-zigbee-temperature-and-humidity-sensor","provider":"Pimoroni Ltd","version":"1.0","type":"link"}