Features Portable Design for Convenience: Lightweight and compact, this measuring device is easy to carry, making it perfect for on-the-go temperature and humidity monitoring Rugged and Durable Construction: Built to withstand wear and tear, this thermometer hygrometer is dustproof and fall-proof, ensuring long-lasting reliability in various environments User-Friendly Digital Display: Quickly process data and view results on a clear digital display, allowing for effortless reading of temperature and humidity levels Highly Accurate Measurements: Enjoy precise readings with a temperature error of ±0.3℃ and humidity error of ±3%RH (41–80%RH), ensuring dependable environmental monitoring Multifunctional Measuring Tool: This versatile temperature humidity monitor not only measures temperature but also tracks humidity, providing complete insights into your indoor air quality Features: 1、Portable thermometer and hygrometer, light weight, compact structure design, easy to carry and use. 2、Rugged and , dust？proof and fall？proof, wear？resistant, , and can provide long use time. 3、Easy to use, proc data and display the results on the digital display for easy reading. 4、The measurement data is accurate, temperature measurement error: ±0.3℃, humidity measurement error: ±3%RH (41？80%RH) ±5%RH (10%~40%RH). 5、The multifunctional indoor air environment tester can not only measure temperature, but also measure humidity. Specification: Item Type: Temperature Humidity Meter Material: ABS Temperature Measurement Range: -40℃~125℃ Humidity Range: 5%RH~98%RH Temperature Measurement Error: ±0.3℃ Humidity Measurement Error: ±3%RH (41-80%RH) ±5%RH (10%~40%RH) Temperature Resolution: 0.1℃/0.1F Humidity Resolution: 0.1%RH Battery Model: 1 x 6F22 Battery (Not Included) Battery Voltage: 9V Purpose: Temperature and humidity measurement Package List: 1 x Temperature Humidity Meter(Battery Not Included) Package List 1 x Temperature Humidity Meter(Battery Not Included)