Specifications

YCO-1093-02-02

Changing the Batteries

If the display is blinking or if the display indicates “Lo”, then the

batteries need to be changed.

Press down on the T mark on the battery cover in the back of the

monitor.

Remove the two old batteries and replace with two new AA alkaline

batteries observing the polarity indications in the battery case.

Slide the battery case cover back into position.

NOTE: Usually the stored personal data will not be erased when the

batteries are replaced, though the clock will need to be reset. On

occasion, it may be necessary to reenter the personal data.

WARNING: Use only the batteries speciﬁ ed in this manual and do not

mix new and old batteries. Failure to do so could cause batteries

to explode, or liquid leakage could occur resulting in damage to the

device.

WARNING: Do not place the device or batteries in an area where

children have access. Swallowing of liquid form breakage of

batteries can be harmful or fatal.

WARNING: When putting the batteries in the DF301 / DF311, position

each with the correct polarity as indicated. Incorrect positioning

could result in an explosion, ﬁ re, injury to a person, or damage to

the device.

CAUTION: Take out the batteries when the DF301 / DF311 is not

used for extended periods of time. Liquid leakage could result in

internal corrosion and damage to the device.