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Remark:
Where outdoor temperature is lower than -20˚C, make sure proper type
of batteries to be used to assure that the device can get enough power
to maintain its function properly. Normal alkaline batteries is not allow
to be used since when outdoor temperature is lower than -20 ˚C, the
battery’s discharging capability is greatly reduced.
When out of the temperature range of 10~35
℃
, transmitter low battery
indicator maybe show up abnormally even you change new batteries
because the low voltage test point will rise along with the temperature
drop under 10
℃
. In this case, you don't need to change the transmitter
batteries. The low battery indicator will work normal when the
outdoor temperature rise to 10~35
℃
