Specifications

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6. Operation using cable connection or wireless 433MHz
Cable Connection:
Using this method of operation will provide interference free trans-
fer of the weather data from the sensors to the base station. The
data sending interval from the sensors to the base station will also
be more frequent compared to using 433MHz transmission and will
result in higher power consumption. Therefore batteries will have a
shorter life span for cable connection compared to using 433MHz.
To operate using cable connection, simply use the enclosed 10
meter cable and connect the thermo-hygro sensor to the base sta-
tion. Once the connection is detected, the base station will automat-
ically continue reading the data from the sensor.
The user may at any time switch from cable connection to using
433MHz (or vice versa) by simply disconnecting (or connecting) the
cable from the base station to the sensor. When the base station
detects no cable connection to the sensors, the existing data read-
ing interval is changed to the new reading interval, i.e. using cable
connection is every 8 seconds data reading interval or from 32
seconds - 128 seconds intervals when using 433MHz (depending
on wind speed)
Using the AC adaptor to operate the base station will also supply
power to the sensor if the cable is connected to it. Batteries used
for 433MHz transmission may be left in the sensor when using
cable connection for power back-up in case of AC power failure. A
loss of power would desynchronize the base station and the sensor
and no weather data will be received. To Synchronize the units so
that the weather data can be received, press and hold the PLUS(+)
for 2 seconds. However in general, batteries that will not be used
for long periods should be removed to avoid leakage.
Wireless 433MHz transmission:
Using 433MHz wireless transmission of weather data from the
sensor to the base station will provide users greater freedom as to
where units can be positioned without the need to be restricted by
cable.