The Mic-energy One-time Temperature Detector is a specialized device designed for accurate and convenient temperature monitoring over a specific period, and its working principle involves several key components and processes that ensure reliable temperature data recording and retrieval.

Core Measurement Mechanism
At the heart of the temperature recorder is its ability to precisely detect temperature changes. The device is equipped with a high-sensitivity temperature sensor that can capture temperature variations within a wide range. For the AE-UT model, the measurement range is -30°C~70°C (-22°F~158°F). This sensor converts the detected temperature into electrical signals, which are then processed by the internal circuitry.
The resolution ratio of 0.1℃ ensures that even small temperature fluctuations are captured, providing detailed and accurate data. The accuracy ratio is ±0.5℃ within 0-70°C (and ±0.9°F within 32°F-158°F), which meets the strict requirements of various industries for temperature measurement precision. Beyond these ranges, the accuracy is ±1℃ (or ±1.8°F), still maintaining a reasonable level of reliability for most applications.
Data Storage Function of temperature recorder
The temperature recorder is capable of storing a large amount of temperature data. The AE-UT model can store 14,400 pieces of data, while the AE-BUT model can store 32,000 pieces. This allows the device to record temperature information over an extended period, depending on the set inter-record gap.
The default inter-record gap is 6 minutes, but it can be customized within the range of 1-255 minutes according to specific needs. For example, in cold chain transportation of pharmaceuticals, a shorter interval may be set to closely monitor temperature changes, ensuring the integrity of the drugs. When the data storage is full, the device automatically stops recording, preventing data overflow and ensuring the validity of the stored information.

Operation and Control
The operation of the temperature recorder is mainly controlled by a manual button. Different button operations correspond to different device states: - When the device is not turned on, a short press of the key results in no indicator light, and the device enters Bluetooth Broadcast mode for 90s. Pressing the key briefly three times makes the red and blue lights flash once, also activating Bluetooth Broadcast for 90s. Pressing and holding the key for 5 seconds causes the red and blue lights to remain on for 3 seconds, after which the device starts up and broadcasts via Bluetooth at intervals of 1 second.
- During startup, the button is ineffective, and the blue light flashes twice every 2 seconds. If there is an alarm, the red light also flashes twice every 2 seconds, which occurs within 60 minutes of startup.
- Pressing the button once briefly during operation makes the blue light flash twice at intervals of 2 seconds for 30 seconds, and if there is an alarm, the red light also flashes twice every 2 seconds, which is used to record MARK points for important temperature events.

Data Retrieval and Report Generation
Retrieving temperature data from the recorder is simple and convenient. The device features a USB connection, which allows for easy connection to a computer. When the USB is inserted into the computer, the blue light flashes continuously in a single flash, while the red light remains unchanged, indicating that the device is generating a report.
One of the key advantages of this temperature recorder is its ability to automatically generate PDF reports without the need to download any software or drivers. Once connected to the computer, a folder is generated, and the storage data report can be viewed in this folder. This PDF report includes essential information such as the start time of recording, alarm events, and detailed temperature data, providing a clear and comprehensive record of temperature changes over the monitoring period.
Power Supply
The temperature recorder is powered by a 3.0V button battery, which has a validity period of 1 year. The battery life varies depending on usage, with the AE-UT model offering 120 or 180 days of battery life. This long battery life ensures that the device can operate continuously throughout the monitoring period, even for extended cold chain transportation or storage.

Application in Various Scenarios
The working principle of the temperature recorder is well-suited for its wide range of applications. It is mainly used in temperature detection in multiple fields, including recording temperature data of food, pharmaceuticals, chemical products, and other items during storage and transportation. In refrigerated containers, cold storage, laboratories, and other links of the storage and logistics cold chain, the device continuously monitors temperature, stores data, and allows for easy retrieval and report generation, ensuring that the temperature conditions of goods are within the required range.
For example, in seafood transportation, maintaining the proper temperature is crucial to keep the seafood fresh. The temperature recorder can track the temperature throughout the journey, and the generated PDF report can be used as evidence of proper temperature control. Similarly, in medical air transport, where the efficacy of drugs is highly dependent on temperature, the recorder provides accurate and reliable temperature data to ensure the quality of medical supplies.
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In conclusion, the Micro-energy One-time Temperature Detector works through a combination of precise temperature sensing, efficient data storage, user-friendly operation, and convenient data retrieval with automatic PDF report generation. Its design and functionality make it an essential tool for temperature monitoring in various industries, ensuring the safety and quality of products during storage and transportation.
