{"product_id":"dragino-s31b-le-eu868","title":"Dragino S31B-LE, LoRaWAN Temperature and Humidity Sensor with E-Ink Display, EU868","description":"\u003cp dir=\"ltr\"\u003eThe Dragino S31B-LE measures air temperature and relative humidity and transmits the measurements via LoRaWAN. The difference from the S31B-LB is the integrated 2.7\" E-Ink display: It displays the current measurements directly on the device, as well as signal strength, battery level, and connection status. A factory-calibrated Sensirion SHT31 serves as the sensor element, and the power supply is provided by an 8000-mAh Li-SOCl2 battery pack with a battery life of up to 5 years, depending on the transmission interval.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eMain features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003e2.7\" E-Ink display for displaying temperature and humidity locally, switchable between °C and °F\u003c\/li\u003e\n\n\u003cli\u003eLoRaWAN 1.0.3, Class A, OTAA, freely configurable transmission interval (default 20 minutes)\u003c\/li\u003e\n\n\u003cli\u003eConfiguration via Bluetooth 5.1 or via LoRaWAN downlink, firmware updates via OTA\u003c\/li\u003e\n\n\u003cli\u003eThreshold alarms for temperature and humidity as well as data logging: If no network is available, the measurements are stored locally and transmitted later\u003c\/li\u003e\n\n\u003cli\u003e8000-mAh Li-SOCl2 battery pack (2 × ER18505), non-rechargeable\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003eSensor: Sensirion SHT31, factory-calibrated\u003c\/li\u003e\n\n\u003cli\u003eDevice measurement range: 0 to 50 °C (limited by the operating temperature range of the E-Ink display)\u003c\/li\u003e\n\n\u003cli\u003eTemperature: Accuracy ±0.2 °C, resolution 0.1 °C, long-term drift \u0026lt; 0.03 °C\/year\u003c\/li\u003e\n\n\u003cli\u003eRelative humidity: 0 to 99.9 % RH, accuracy ±2 % RH, resolution 0.01 % RH, long-term drift \u0026lt; 0.25 % RH\/year\u003c\/li\u003e\n\n\u003cli\u003eDisplay: 2.7\" E-Ink\u003c\/li\u003e\n\n\u003cli\u003eRadio: LoRaWAN 1.0.3 Class A, EU868, max. +22 dBm, sensitivity down to −139 dBm\u003c\/li\u003e\n\n\u003cli\u003eBattery: 8000 mAh Li-SOCl2, self-discharge \u0026lt; 1 %\/year at 25 °C\u003c\/li\u003e\n\n\u003cli\u003eCurrent consumption: 5 µA in sleep mode, 125 mA when transmitting at 20 dBm\u003c\/li\u003e\n\n\u003cli\u003eOperating temperature: 0 to 50 °C\u003c\/li\u003e\n\n\u003cli\u003eScope of delivery: 1 × S31B-LE\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003eIndoor climate monitoring in offices, schools, and commercial buildings, with measurement display directly on site\u003c\/li\u003e\n\n\u003cli\u003eNon-refrigerated warehouse and logistics areas, with alarms for threshold exceedance\u003c\/li\u003e\n\n\u003cli\u003eLaboratories, server rooms, and technical rooms\u003c\/li\u003e\n\n\u003cli\u003eArchives, museums, and storage rooms for moisture-sensitive goods\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003e\u003ca href=\"https:\/\/docs.dragino.com\/docs\/LoRaWAN-End-Node\/temperature-humidity-sensors\/s31b-le\"\u003eManual\u003c\/a\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"Dragino","offers":[{"title":"Default Title","offer_id":55383281992007,"sku":"S31B-LE-EU868","price":52.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/6561\/1847\/files\/S31B-LE.jpg?v=1794231950","url":"https:\/\/exp-tech.de\/en\/products\/dragino-s31b-le-eu868","provider":"EXP Tech","version":"1.0","type":"link"}