• Updates every 2½ seconds
• Transmits weather data wirelessly up to 300 metres!

Our newest wireless weather station provides accurate, reliable weather monitoring in a self-contained, easy-to-install system. This weather station gives you all the weather data you need for home use, education, boating and more. Sleek but tough—your outdoor sensor suite sets up in minutes and starts sending data wirelessly to your console anywhere in your home, school, or business. You’ll see current weather conditions, including indoor and outdoor temperature and humidity, barometric pressure, wind speed and direction, dew point and rainfall. You’ll also get weather forecast icons, moon phase, sunrise/sunset times, graphing of weather trends, alarms and more. It also boasts the innovative Weather Centre button that displays additional data on weather variables for today and over the last 25 days.

• Updates every 2½ seconds
• Transmits weather data wirelessly up to 300 metres!
• • Can transmit for miles on end with new long-range repeaters!

The first and only station in its price range to use frequency hopping spread spectrum radio, our wireless and solar-powered MET9955 professional weather station transmits and receives data up to 300 metres line of sight. That’s over three football fields in length — and three times farther than competing stations! You’ll get highs and lows (and/or totals or averages) for virtually all weather variables for the last 24 days, months, or years, and your own local forecast.

Forecast icons let you know whether to expect sun, part sun, clouds and rain, or snow. Eight phases of the moon, from new moon through full moon. Time and date fields let you view:

• Time of sunrise and sunset

• Current time and date

• Time and date of highs and lows

• Time and date of graphed data point Five-position trend arrow shows whether barometric pressure is rising, falling, or stable. Fixed display area shows the most important weather variables at all times. Plus and minus keys simplify data entry. View monthly or yearly rainfall, rain rate, evapotranspiration, or intensity of solar radiation. Umbrella icon appears when it is currently raining.

View daily rain or rain for this storm. Variable display area lets you pick between:

• Inside or additional temperatures or soil moisture

• Inside or additional humidity, UV index, or leaf wetness

• Wind chill, dew point, or two different heat indices.

MET9955 Features:

• Large 3½” × 6″ (9 × 15 cm) LCD screen.

• Updates every 2½ seconds, so you’ll always be on top of changing weather conditions.

• Backlit display for easy viewing.

• U.S. and metric units of measure.

• Weather software and data logger for even more analysis.

This weather station use frequency hopping spread spectrum radio. You’ll get three times the transmission distance, improved reception through multiple walls, and greater immunity from RF interference.

Instruments of MET9955 weather station

Anemometer includes both wind speed and wind direction sensors. Rugged components stand up to hurricane-force winds, yet are sensitive to the lightest breeze. Wind-tunnel tested to speeds in excess of 170 miles per hour (274 km/h).

Unlike the smaller rain collectors sold elsewhere, the rain collector meets the guidelines of the World Meteorological Organization. Reads rainfall amounts in 0.01″ or 0.2 mm increments.

Wireless integrated sensor suite runs on solar power. Lithium battery provides backup at night and during cloudy, wintry days.

Temperature and humidity sensors are located inside the radiation shield. The shield protects the sensors from solar radiation and other sources of radiated and reflected heat.

Weather-resistant shelter houses electronic components for added protection against the elements.

Optional mounting pole is just one of several installation options. You may also use our mounting tripod or your own pole.

The aluminum-plated tipping bucket in our rain collector is self-emptying, corrosion resistant, and laser calibrated for exceptional accuracy.

Options

Add additional console/receivers to view data in more than one location.
One can opt for a cabled MET9955 weather station instead of the wireless one.
Add one or more special-purpose stations to read leaf wetness or soil moisture, or to read temperature and humidity in additional locations.
EXTRA SENSORS

Solar Radiation Sensor

To measure solar radiation and solar energy. Diffuser element and housing are carefully designed for accurate cosine response. Silicon photo diode provides good match to solar spectrum. Two-piece housi7ng minimizes radiation heating, allows convection cooling of the sensor, and prevents the trapping of water or dust. To mount next to a rain collector, add our Sensor Mounting Shelf.

UV Sensor

Measures the sunburning portion of the UV spectrum. Allows you to display UV index, dose rate, and daily and accumulated dose. Multi-layer filter provides a spectral response that closely matches the Erythema Action Spectrum. Diffuser provides excellent cosine response. Two-piece housing minimizes radiation heating, allows convection cooling of the sensor, and prevents the trapping of water or dust. To mount next to a rain collector, add our Sensor Mounting Shelf.

Mounting Pole Kit

Optional Mounting Pole Kit includes two galvanized steel poles, connector, and mounting hardware. Poles measure 19½” (0.50 m) and 21″ (0.53 m) long. Assemble the two together to make a single 37½” (0.95 m) long pole. Outside diameter is 15/16″ (33 mm).

Mounting Tripod

Optional tripod makes installation even easier. Brackets at the base of legs tilt to mount on roof or uneven terrain. Made of galvanized steel. Includes two 363/8″ (0.92 m)-long poles, which may be used separately or together to make a single 69¾” (1.77 m)-long pole.

Antennas for Long-Range Repeaters

For use with our long-range repeaters. Each repeater requires two antennas: one to receive the data, and another to retransmit it. Omni antennas transmit or receive in all directions. Yagi antennas transmit or receive from a single direction, but have a longer transmission distance. Mix or match to suit your needs; use the chart to determine the distance you’ll be able to achieve depending on the antennas used.

Hour
Quartz clock with manual setting function
12 or 24 H display
Day / date / month display
Forecast

Barometer with 3 icones display
Trend display
3 sensitivity levels to choose from 2 to 4 hPa
Atmospheric pressure

Unit : hPa or inHg
Relative pressure from 920 hPA to 1080 hPa (1013 hPa by default)
Barometric graph over last 12 hours
Recording of the minimum and maximum data measured with time and date
15 second measuring period
Outdoor temperature

Unit : °C of °F
Range : from -40 °C to +59.9 °C
Precision : 0.1 °C
Recording of the minimum and maximum temperature measured with time and date
Outdoor humidity

Unit : % RH
Swiss made high definition sensor
Range : from 1 % to 99 %
Precision : 1 %
Accuracy : +/- 3 %
Recording of the minimum and maximum humidity measured with time and date
Wind speed and Wind direction

Unit : km/h, m/s, mph or Beaufort
Range : from 0 to 180 km/h (or from 1 to 50 m/s)
Wind direction displayed data measured with time and date
Wind chill

Wind chill display
Unit : °C or °F
Range : from -40 °C to +59.9 °C
Rain

Display of total volume
Unit : mm or inch
Range : from 0 to 9999 mm
Precision : 0.5 mm
Alarms

Clock alarm
Outdoor temperature alarm (high and low) – (hysterisis of 1 °C)
Outdoor humidity alarm (high and low) – (hysterisis of 3 %)
Wind speed alarm (high) – (hysterisis of 5 km/h)
Storm alarm (level setting from 3 to 9 hPa)
Possibility to turn off the buzzer
Frequencies

868 MHz wireless transmission
Transmission

868 Mhz Transmission distance : 100 metres (in open field)
4.5 second measuring period
Store up and display of 200 sets of weather data which are recorded automatically at 3-hour intervals
LCD contrast

LCD contrast adjustable from +1 to +8
Delivered with

1 outdoor temperature and humidity transmitter
1 rain gauge
1 anemometer (horizontal or vertical installation)
cables to link transmitters to each other
Measurement

Of the station (L X W X H) : 165 X 31 X 142 mm
Of the thermo/hygro transmitter (LX W X H) : 57 X 62 X 157 mm
Of the rain gauge (L X W X H) : 144 X 55 X 88 mm
Of the anemometer (L X W X H) : 250 X 164 X 193 mm
Alimentation

3 batteries X AA, IEC LR6 1,5 V for the receiver
2 batteries X AA, IEC LR6 1,5 V for the thermo/hygro transmitter

Hour
Radio-controlled clock (Frankfurt antenna / DCF-77 Signal)
Manual setting function
12 or 24 hour display
Time zone : +/- 12 hours
Day / date / month display
Indoor temperature

Unit: °C or °F
Range: from – 9.9 °C to + 59.9 °C
Precision : 0.1 °C
Recording of the minimum and maximum temperature measured with time and date
15 second measuring period
Indoor humidity

Unit : % RH
Swiss made high definition sensor
Range : from 1 % to 99 %
Precision : 1%
Accuracy : +/- 3 %
Recording of the minimum and maximum humidity measured with time and date
30 second measuring period
Forecast

Barometer with icon display
Trend display

Atmospheric pressure

Unit : hPa or inHg
Range: from 300 hPa to 1099 hPa
Relative pressure (from 920 hPa to 1080 hPa)
Pressure sensitivity level setting
Recording of the minimum and maximum data measured with time and date
Outdoor temperature

Unit : °C or °F
Range : from – 29.9 °C to + 69.9 °C
Precision : 0.1 °C
Recording of the minimum and maximum temperature measured with time and date
Outdoor humidity

Unit : % RH
Swiss made high definition sensor
Range : from 1 % to 99 %
Precision : 1%
Accuracy : +/- 3 %
Recording of the minimum and maximum humidity measured with time and date
Dew point

Dew point display
Recording of the minimum and maximum data measured with time and date
Wind speed and Wind direction

Unit : km/h, m/s, knots, mph or Beaufort
Range : from 0 to 180 km/h (or from 1 to 49.9 m/s)
Wind direction displayed on a 360° compass
Recording of the minimum and maximum data measured with time and date
Wind chill

Wind chill display
Recording of the minimum and maximum data measured with time and date
Rain

Display of precipitation : over 1 hour, 24 hours or total volume
Unit : mm or inch
Range : from 0 to 999.9 mm (over 1 or 24 hours) and from 0 to 2499 mm (on the total rain volume)
Precision : 0.5 mm
Recording of the minimum and maximum data measured with time and date
Alarms

21 alarm setting (high and low) :
clock alarm
storm alarm (sound alarm possible)
indoor temperature alarm (high and low)
outdoor temperature alarm (high and low)
indoor humidity alarm (high and low)
outdoor humidity alarm (high and low)
wind chill alarm (high and low)
dew point alarm (high and low)
precipitation alarm over 24 hours and over 1 hour
relative pressure alarm (high and low)
wind speed alarm (high and low)
wind direction alarm
PC connection

Computer connection included
Delivered with setup CD-ROM (in French, English and German) and one 2 metre cable for linking the base station and the computer (USB)
Data is gathered by the computer, which can be used to create graphs or to export it
Storage capacity of 175 sets of data
Frequencies

For 433 MHz transmission
* if the wind speed is greater than 10 m/s, every 32 seconds
* if the wind is less than 10 m/s, every 128 seconds
* Or every 10 minutes if the station fails to receive any data after 5 attempts in a row (all outdoor data readings will display “—“ except for the rain value)
If the transmission is by cable, every 8 seconds
Transmission

433 MHz wireless or cable-based transmission
433 MHz Transmission distance : 100 metres (in open field)
Transmission distance by cable : 10 metres (however an extra 10 metres can be added)
LCD contrast

LCD contrast adjustable from +1 to +8
Delivered with

1 outdoor temperature and humidity transmitter
a rain gauge
an anemometer
cables to link transmitters to each other
Measurement

of the Station ( L x W x H) = 170 x 32 x 139 mm
of the thermo/hygro transmitter ( L x W x H) = 71.5 x 73 x 136 mm
of the rain gauge ( L x W x H) = 140 x 70 x 137 mm
of the anemometer ( L x W x H) = 250 x 277.6 x 77.9 mm
Alimentation

3 x AA batteries, IEC LR6 1.5 V for the receiver
2 x AA batteries, IEC LR6 1.5 V for the thermo/hygro transmitter