TFA Dostmann GAIA 35.1083 Wireless Weather Station, 433 MHz, with Outdoor Sensor and Barometer

TFA Dostmann GAIA 35.1083 Wireless Weather Station, 433 MHz, with Outdoor Sensor and Barometer

TFA Dostmann GAIA 35.1083 is a wireless digital weather station designed to monitor indoor and outdoor temperature, relative humidity and atmospheric pressure. The included wireless outdoor sensor transmits measurements to the base station, while the integrated barometer provides pressure trends and a local weather forecast. Additional functions include programmable weather alarms, dew point calculation, minimum/maximum memory and a DCF-77 radio-controlled clock.

Key specifications: 433 MHz wireless transmission • up to 100 m range • indoor/outdoor temperature and humidity • 919–1080 hPa barometer • 24-hour pressure history • DCF-77 clock

Key Features and Benefits

• Wireless outdoor monitoring – the included temperature and humidity transmitter sends measurements to the base station over a 433 MHz radio connection, with a maximum range of 100 m in open areas.
• Indoor climate monitoring – integrated temperature and humidity sensors help users assess indoor conditions and make informed decisions about heating and ventilation.
• Atmospheric pressure monitoring – displays absolute and relative atmospheric pressure, pressure trends and a bar chart covering the previous 24 hours.
• Local weather forecasting – four weather symbols (sunny, partly cloudy, cloudy and rainy) indicate expected weather developments based on atmospheric pressure changes.
• Programmable weather alarms – adjustable upper and lower limits for temperature, humidity, dew point and atmospheric pressure, plus a storm warning function triggered by rapid pressure drops.
• Dew point calculation – displays dew point temperature to help assess moisture conditions and the potential for condensation.
• MIN/MAX memory – stores minimum and maximum measured values for temperature, humidity, dew point and atmospheric pressure, together with the date and time of recording.
• Radio-controlled clock – receives the DCF-77 time signal and provides a calendar, alarm clock and 10-minute snooze function.
• Illuminated LCD display – clearly organized weather information with LED backlighting activated for 10 seconds at the press of a button.

Applications and Intended Use

The GAIA weather station is suitable for homes, apartments, offices, holiday properties and other locations where local environmental conditions need to be monitored.

Typical applications include: - Monitoring indoor and outdoor temperature and humidity. - Assessing ventilation and heating requirements. - Observing atmospheric pressure trends and local weather changes. - Receiving audible alerts when preset weather parameter limits are exceeded. - Monitoring environmental conditions in another room using the wireless transmitter.

The product is intended for household environmental monitoring and general weather information. It is not a certified professional meteorological or laboratory measuring instrument.

Compatibility and Limitations

• Compatible outdoor transmitter: TFA 30.3166.02.S2, designed for the GAIA 35.1083 weather station.
• Wireless communication: 433 MHz radio transmission between the outdoor transmitter and base station.
• Transmission range: up to 100 m in open areas. Walls, reinforced concrete, metal objects and radio interference may significantly reduce the range.
• Time synchronization: DCF-77 radio time signal at 77.5 kHz. Reception depends on geographical location and signal conditions. Manual time setting is also available.
• Time zone adjustment: ±12 hours.
• Internet connectivity: the station operates independently. Wi-Fi, Bluetooth and smartphone application connectivity are not provided.
• Weather forecasting: forecasts are based on locally measured atmospheric pressure changes, not internet weather services.
• Outdoor transmitter protection: splash-resistant but not waterproof. It must be installed in a shaded location protected from direct precipitation.

Technical Specifications

Parameter	Specification
Manufacturer	TFA Dostmann
Model	GAIA 35.1083
Product type	Wireless digital weather station
Indoor temperature measuring range	0 to +60 °C
Outdoor temperature measuring range	−40 to +65 °C
Temperature units	°C / °F
Indoor relative humidity measuring range	1–99% RH
Outdoor relative humidity measuring range	20–95% RH
Humidity resolution	1% RH
Humidity accuracy	±5% RH at 0 to +45 °C
Atmospheric pressure range	919–1080 hPa
Atmospheric pressure resolution	0.1 hPa
Atmospheric pressure units	hPa / inHg
Atmospheric pressure indication	Absolute and relative pressure
Pressure history	24-hour bar chart
Weather forecast	4 graphical weather symbols
Additional calculation	Dew point temperature
Measurement memory	MIN/MAX values with date and time
Alarm functions	Programmable HI/LO limits and storm warning
Audible alarm duration	120 s
Outdoor sensor measuring interval	48 s
Wireless transmission frequency	433 MHz
Maximum radio-frequency power	<10 mW
Maximum wireless range	100 m in open field
Included transmitter model	TFA 30.3166.02.S2
Clock	DCF-77 radio-controlled clock
Radio time signal frequency	77.5 kHz
Time zone adjustment	±12 hours
Time format	12 / 24 hours
Alarm clock	Yes, with 10-minute snooze
Display	LCD with LED backlight
Backlight duration	10 s
Base station power supply	3 × 1.5 V AA (LR6) alkaline batteries
Outdoor transmitter power supply	2 × 1.5 V AAA (LR3) alkaline batteries
Housing material	Plastic
Installation	Freestanding or wall-mounted
Base station dimensions	101 × 33 (75 with stand) × 187 mm
Base station weight	251 g
Outdoor transmitter dimensions	69 × 29 × 90 mm
Outdoor transmitter weight	82 g
Regulatory compliance	EU Radio Equipment Directive 2014/53/EU

Design and Operation

The base station features an LCD display divided into sections for time and date, indoor conditions, outdoor measurements, weather forecast and atmospheric pressure information.

Five buttons – SET, ALM, MIN/MAX, + and SNOOZE/LIGHT – provide access to settings, alarm thresholds, measurement history and display illumination.

Users can select °C or °F for temperature and hPa or inHg for atmospheric pressure. The station also allows humidity reading adjustment using a suitable reference instrument and relative pressure calibration based on local atmospheric conditions.

The base station can stand on a surface using its folding support or be mounted on a wall. The outdoor transmitter has its own temperature/humidity display and mounting bracket.

Important Operating and Safety Notes

• Install the outdoor transmitter in a shaded location protected from rain and snow. Direct sunlight can cause inaccurate temperature readings.
• During initial setup, insert the batteries into the outdoor transmitter first, followed by the base station. Avoid pressing buttons during the initial 10-minute synchronization period.
• Replacing batteries may require the transmitter and base station to be paired again.
• The manufacturer recommends alkaline batteries and advises against using rechargeable batteries in the outdoor transmitter in its troubleshooting instructions.
• DCF-77 reception may be impaired by reinforced concrete structures and nearby electronic equipment.
• Weather forecasts and storm warnings are indicative and based on pressure changes. They are not a substitute for official meteorological warnings.

Package Contents

• 1 × TFA Dostmann GAIA wireless weather station (base station).
• 1 × TFA 30.3166.02.S2 wireless temperature and humidity transmitter with mounting bracket.