Jumper PD-FR409-B, Instruction Manual, Page: 26 / 40

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measurement data in real time by using APP "JUMPER HEALTH". The
software automatically saves the measurement data and draws a
temperature curve graph, which helps view the temperature change status
in real time.For a method for connecting the thermometer to the smart
phone,see Operation Instruction.
Replacing Batteries
1
、
Slide the battery cover off along the marked direction and take it off.
2
、
Insert the two AAA batteries into the compartment according to the
stated polarities.
Make sure that the batteries are installed correctly. Otherwise, the
thermometer may be damaged.
If the low-battery symbol is displayed on the screen, replace the
batteries.
Batteries of a same type should be used. Dispose the used batteries
in accordance with the local environmental policies.
The thermometer is shipped with batteries. First open the battery
cover, then remove the insulating piece.