Sensor Placement; Pm2.5 Air Quality Sensor (Optional); Best Practices For Wireless Communication - Froggit WH3000SE PRO Bedienungsanleitung

5.2.8.2 Sensor Placement

The best mounting location for the indoor sensor is in a location that
never receives direct sunlight, not even through windows. Also, do not
install in a location where a nearby radiant heat source (radiator,
heaters, etc.) will affect it. Direct sunlight and radiant heat sources will
result in inaccurate temperature readings.
 Use a screw or nail to affix the remote sensor to the wall, as shown
on the left side of Figure 15, or
 Hang the remote sensor using a string, as shown in right side of
Figure 15
Note: Make sure the sensor is mounted vertically and not lying down
on a flat surface. This will insure optimum reception.

5.2.8.3 PM2.5 Air Quality Sensor (optional)

The WH3000SE PRO supports one indoor and one outdoor PM2.5 Air
Quality sensor, and the console receives and sends this data directly to
ecowitt.net. The data is not displayed on the console (pass through only)
and cannot be calibrated.

5.3 Best Practices for Wireless Communication

Note: To insure proper communication, mount the remote sensor(s)
upright on a vertical surface, such as a wall. Do not lay the sensor flat.
Figure 15: Indoor sensor mounting
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