Temperature Humidity Data Logger


The PDF data logger is ideal for monitoring the temperature/humidity of shipments in transit. After recordings are started by pressing the start button, the data logger is placed inside the carton and then dispatched. At the receiving end, the data logger is taken out from the package. It can be connected to the USB port on a computer and used as a USB mass device to get the PDF report and DLG file directly without any other software or driver. Especially, user can use the software named DGraph to re-start and re-use the PDF data logger very easily.


These data loggers are mainly used to monitor and verify temperature/humidity-sensitive goods, equipment or areas.
Example: Cold Chain Refrigeration Transportation HVAC Food & Pharmaceutical Warehouse Laboratories  Aircraft cabins Agriculture and Livestock Environmental monitor.


Generate PDF Report automatically and read PDF Report without any software and driver.
Can be used as a U-disk device, and can output PDF, DLG (data logger standard file type) or any other file types.
Product-related temperature/humidity monitoring along the entire cold chain so easily.
IP67 Waterproof.
High accuracy industrial grade sensors and components, high-quality and low cost.
For high precision temperature / humidity measurement, recording and monitoring.
Elaborate design makes it perfectly work in more application fields.

Industrial Use


Temperature Accuracy ±0.3°C  (±0.5°F)
Humidity Accuracy ±3 %RH
Temperature Range -35 to 80°C(-31 to 176°F)
Humidity Range 0 – 100%RH
Sensor location Internal
Resolution 0.1 ??? (0.2°F) / 0.1%RH
User Type Multi use – DGraph software used to re-start and re-use
PDF Report Generate PDF report automatically and read PDF report without any software and driver
Typical Application Cold Chain Refrigeration Transportation HVAC Food & Pharmaceutical  Warehouse
Memory Capacity 8640 readings or more
Sample Rate 1sec. to 24hr.
Start Method Immediately, Start by button
Stop Method Press button to stop(Manual), or stop automatically after task finished
Button Press button to start or stop
Elapsed Time According to set sample rate
LED Logger Status indication; Low battery indication
Alarm User programmable high or low alarm limit for each channel; Alarm delay and type can be set
Communication Interface USB2.0
PC Software DGraph software used to set and analysis
(Compatible with Windows XP, Vista, 7,8,10(32 bit & 64bit Versions))
Power Supply User replaceable CR2032 3.0V Lithium Battery
Battery Life Approx. 1 Years @ 5 Minute Sample Rate
Operating Range 0 to 100%RH  -35 to 80???(-31 to 176???)
Storage Range 20 to 60%RH  10 to 50???(50 to 122???)
Case Material ABS
Dimension 94mm × 39mm × 17mm
Weight Approx. 80 grams
Standard Certification ROHS, CE