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Fresh Keeper 1 Temperature Humidity Data Logger

Fresh Keeper 1 Temperature Humidity Data Logger

Temperature range: -30℃~+70℃

Humidity range: 0%~100%RH

Memory capacity: Max. 35,000 readings


Compatible with Windows and Mac OS alike

Large LCD screen for intuitive display


Fresh Keeper 1 is a reusable temperature/humidity data logger. It can be applied under different transportation and storage conditions. And it will generate an encrypted irrevocable PDF report automatically after it is connected with PC. CSV report is available if required.


Parameters Configurable

Parameters are programmable by our free software

High accuracy and large capacity

Built-in high-precision sensor, with a temperature measuring accuracy of ±0.5℃ and a humidity measuring accuracy of ±3%RH; 

Up to 35,000 readings.


9 marks are available

Intuitive LCD screen

Real-time viewing of running status, Max./Min./Average value, alarm status, remaining days, battery level

Super-long battery life

Max. 999 days

Automatic PDF/CSV data report

Automatic generation of an encrypted PDF report or CSV report, no software required; Temporary reports are available. 



Fresh Keeper 1

Type of use

Multi use

Run Days

Max. 999 days

Temperature Range


Temperature Accuracy

±0.5℃ at full range (-30℃ to +70℃)

Humidity Range


Humidity Accuracy



Temperature 0.1℃  Humidity 0.1%RH

Memory Capacity

Max. 35,000 readings

Shelf Life

2 years

Logging Interval

1 minute-24 hours

Start delay


Battery type

3.6V lithium battery


Max.9 marks


Max. 6 alarm points

Report Format


Protection class



CE, RoHS, EN12830


About 60g




Fresh Keeper 1 features large memory capacity, long battery life, high waterproof class and easy operation. With 9 marks and 6 alarm points configurable, the logger can be used for cold chain transportation, storage and other processes of pharmaceuticals, food, etc. 

For frozen food, it is very important to keep the growth of microbes as low as possible by maintaining temperature threshold values. 

For fruits and vegetables, the most important thing is to prevent them from ripening too early. Fruits, vegetables, and flowers are highly perishable commodities that require proper environmental monitoring in post-harvest processing to maximize freshness, quality, and shelf life from the field to the table. 

The environmental condition of temperature-sensitive products must be carefully monitored and documented during handling and storage, to ensure food safety, quality, and longer shelf life, especially for highly perishable products such as dairy, seafood, meat, poultry, and floral products. 

With this logger, you can be in control of temperature/humidity data and timely make adjustments according to alarms, so as to reduce losses and ensure product safety. And with an irrevocable report, you can study the changes in temperature/humidity and analyze the reasons, so as to gradually improve production, transportation and storage environment.


Freshliance Tools

Freshliance Tools is a desktop software for users to use Freshliance USB data loggers. It consists of three pages: Summary, Graph and History. On the Summary page, the software will first automatically identify ID, model, recording type, sensor type, battery level, status and other information of the device plugged in. And then users can configure the data logger as needed, including start mode, start delay, time zone, time format, logging interval, report format, PDF/software password, high and low alarm, etc. During or after data recording, user can also check statistical information of the device after plugging it in. Besides, the graph page provides a simple X–Y plot of time versus temperature/humidity which can be save as PNG format file, a list and a summary of all data recorded, as well as an option to export the report in PDF, CSV, TXT format; and the history page provides a list of all the devices whose report was read by this software.

The software is designed for Fresh Tag 10T/TH, Thermis Log 10T/TH, Tagplus-T/TH, Atlas Log-30/60/90/200/IUT, Rugged data logger, Keeper 1/IUT, COEUS-UEX.

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