These icons allow the user to determine the combine effect of the temperature and humidity on the level of comfort of the immediate environment.

The stations display the level of comfort with an icon :

-Smiley face if the indoor temperature is between 20°C and 26°C and relative humidity is between 45% and 65%. The level of comfort is then high.
-Sad face for all combinations outside the above ranges. The level of comfort is then weak.

The « sad » icon can in some of our products be displayed with the words "DRY" ou "WET" : relative humidity is above (Dry) or below (Wet) the level of comfort. If only the temperature is outside the level of comfort, none of these words will be displayed. To sum up, the sad icon with: -> "DRY" indicates a relative humidity below 45% -> "WET" indicates a relative humidity above 65 %.

These icons are the representation of a weather trend. Therefore and firstly: to distinguish from the snapshot of real time.
As a matter of fact, with any sudden or final change in atmospheric pressure, weather symbols are updated. This also means that the icons don’t change in the absence of any significant change in the weather.

If the symbols don’t change, this simply means that:

1) the pressure hasn’t varied or
2) the change has been so slow that it has not been possible to record the moment at which it actually happened..

The sensitivity to the changes in atmospheric pressure responsible for change in the weather icon display is programmable (1, 2, 3, 4 or 5 hPa) on some weather stations. In areas in which weather icons don’t change easily due to an almost stagnant atmospheric pressure, users can consider a weaker hPa setting to get a more sensitive reading of atmospheric pressure.

The displayed weather icons predict the weather to come in terms of improvement or worsening, and not necessarily in terms of sunshine or rain as the symbols indicate.
For example, if the weather is cloudy and the rain icon is displayed, this does not mean that the machine is not working because it isn’t raining. This simply means that the atmospheric pressure has fallen and the weather is going to get worse. Without there being necessarily any immediate rainfall.

An arrow pointing down indicates a predicted decrease in atmospheric pressure, thus deteriorating weather. On the contrary, an arrow pointing upwards indicates a predictable increase in atmospheric pressure, thus weather set to improve in relation to the current weather. (but this doesn’t exclude for example passing rainfall).

The combination of weather icons and trend arrows allows the weather station how the weather has changed and what the forecast is. Thus, if the trend arrow is displayed together with the sun/cloud icon, the last notable change occurred when it was sunny (sunshine icon only). This means that the next change in the weather will indicate rain since the trend indicator is pointing down.

On the majority of our stations, the arrow indicating weather trend remains on the LCD whatever the weather. Therefore, if it rains and the indicator is pointing downwards, this indicates that the bad weather is set to continue. If the weather is sunny and the indicator is pointing upwards, the weather should remain good.

If the atmospheric pressure decreases to an extreme rate of 3 to 9 hPa or more in six hours, stations equipped with a storm alarm will signal this, either by flashing the storm cloud icon or by a audio signal, or both.

During the switching on of a rain meter equipped or not with a EEPROM memory, 5 to 10 minutes may elapse between the reception of rain data and their display on the station. Please be patient and do not try to restart the station.

On the majority of anemometers of our selection of stations, it is possible to display the wind speed on the LCD depending on the different measurements available to choose from. Please check that the display on the LCD is the one the user wishes to have.

The "OFL" appearing on the appliance LCD screen indicates the exceeding of measurement intervals. The normal display reappears automatically when measurements taken return to standard value.

The appearance of «OFL" can also result from the distortion of transmission signals owing to interferences.

For appliances equipped with humidity measurements, if the temperature is sustainably less than 0°C or more than + 45°C, the humidity reading can differ from actual humidity. The "-" display indicates the non reception of long distance transmissions. See chapter 2 (long distance transmission).

First check the batteries :

1) Pay attention to the +/- whilst inserting batteries. The level of charge must also be at its maximum, no rechargeable batteries.
2) The order of insertion of batteries between transmitter and station is important, this order is indicated in the manual for all appliances. (See (‘batteries’ paragraph).
3) Install the batteries in the transmitter within one minute of inserting the batteries in the transmitter or conversely, depending on the order of insertion.

If only the data from the outdoor transmitters is not displayed, please read the paragraph concerning transmissions.