
Specification (T = 25℃unless otherwise noted)
Accuracy (0 to 20 and 80 to 100%)
Accuracy (20 to 40 and 60 to 80%)
Accuracy(-30 to +0℃,-22 to 32℉)
Accuracy(0 to 60℃,32 to 140℉)
Remark:
CR2450 battery performance is optimal in room temperature. Battery life cycle will reduce at low
temperature (-18℃). If the device is to be used to record in extremely low temperature, it is
advised to take measures to reduce power consumption to prolong operation time. An option
includes:
Choose battery that is designed to operate at low temperature
Disable LED to reduce power consumption
Set longer sample interval, 5 minutes for example
Firmware upgrade
User can also upgrade its firmware in this page.
In this page, long press and display will show “UP+USB”
Then insert the device into the PC USB port. The device will appear as a Mass Storage Device in
PC with no content.
Drag and drop the firmware to the folder.
The device will disappear in the OS. DO NOT unplug the device from PC. It takes around
After upgrade completed, Device will automatically appear as a Mass Storage Device again.
The firmware version is indicated in the left bottom corner of the .pdf test report generated.