To calibrate temperature, we recommend a mercury or red spirit (fluid) thermometer. Bi-metal (dial)
and other digital thermometers are not a good source and have their own margin of error. Using a local
weather station in your area is also a poor source due to changes in location, timing (airport weather
stations are only updated once per hour) and possible calibration errors (many official weather stations
are not properly installed and calibrated).
Place the sensor in a shaded, controlled environment next to the fluid thermometer, and allow the
sensor to stabilize for 48 hours. Compare this temperature to the fluid thermometer and adjust the
console to match the fluid thermometer.
4.3 Sensor Operation Verification
Verify the indoor and outdoor humidity match closely with the console and sensor array in the same
location (about 5 to 10' apart). The sensors should be within 10% (the accuracy is ± 5%). Allow
about 30 minutes for both sensors to stabilize.
Verify the indoor and outdoor temperature match closely with the console and sensor array in the same
location (about 1.5m to 3m apart). The sensors should be within 2°C(the accuracy is ± 1°C). Allow
about 30 minutes for both sensors to stabilize.
4.4 Indoor Sensor Installation
Indoor use only. It is recommended you mount the Indoor sensor on a north facing wall, in a
shaded area. Direct sunlight and radiant heat sources will result in inaccurate temperature
readings. Use a screw or nail (not included) to affix the indoor sensor to the wall, as shown in
Figure 4.
Or put it on the table, Place the console at least three feet away from computers, TVs and wireless
phones. Avoid transmitting through solid metal barriers. as shown in Figure 4
Figure 4
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