Features1[Compact And Portable] Temperature humidity meter is small, easy to carry without taking up too much storage space, top carry design to hanging it on a wall hook. 2[Real Time Monitoring] After connecting to the APP, upload the data to the APP, and generate a curve in the APP so that you can intuitively understand the temperature and humidity changes, record and analyze, and take care of the health of your family. 3[Data Storage Function] Built in storage function, record temperature and humidity every 10 minutes, data can be exported to CSV file, and can be shared with friends. 4[High Accuracy] Adopt MEMS digital temperature and humidity sensor, with stable and accurate measurement, and refreshes rate of 1 second/time. 5[Widely Application] Widely used in greenhouse planting, agricultural breeding, flower house, cold chain, warehouse, indoor, pharmacy, etc.SpecificationItem Type: Temperature Humidity MeterMaterial: ABSTemperature Range: -20~65 DegreeC (-4~150 DegreeF)Humidity Range: 0-100% RHAccuracy:Temperature: +-0.5 DegreeC/1 DegreeF Humidity: +-5.0%Wireless Range: 50M/164ftFree APP Control: YesSensor Type : MEMSBattery: 1 x CR2477 button battery 1000MAH (Battery Included)Alarm: NoHistorical Memory Time: Every 10 minutesBattery Life: About 365 daysWeight: Approx. 35g / 1.2ozPackage List1 x Temperature Humidity Meter (Battery Included) 1 x Accessory 1 x Manual