Elitech Digital Bluetooth Hygrometer Thermometer, Refrigerator Thermometer with Free APP, Real-Time Temperature Humidity Monitor with 4.5" Screen, PDF&CSV Data Export, IPT-100S with External Probe

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• Dual High-Precision Sensors: Equipped with both internal and external temperature and humidity sensors, offering a temperature resolution of 0.1℃ for accurate monitoring. The internal sensor is ideal for stable indoor environments (-10℃ to 60℃), while the external sensor is designed for scenarios with rapid temperature changes, such as refrigerators and storage cabinets (-20℃ to 70℃), ensuring precise monitoring in various conditions.
• Dual Data Recording Modes: Supports both online recording via APP and offline recording on the device. The device can store up to 5,000 data sets locally, with a default recording interval of 30 minutes, ensuring over 100 days of data retention. The recording interval can be adjusted flexibly (from 30 seconds to 1 hour) to meet different needs.
• Convenient Data Review: By pressing the temperature review button, you can quickly access historical data from the past 2/4/6/8/10/12 hours. Data can also be viewed in real-time via the APP, making it easy to monitor temperature changes at any time.
• Smart Data Analysis and Export: The APP allows you to view temperature change curves, maximum and minimum values, and supports exporting data reports in EXCEL and PDF formats, facilitating data analysis and archiving.
• Long Battery Life & Energy Efficiency: Designed with low power consumption, the device can run for over 6 months in always-on mode with just 3 AAA batteries, and up to 500 days in total, reducing the hassle of frequent battery replacements.