Skip to main content Skip to search Skip to main navigation

BRESSER HCHO + VOC Sensor

Help & Service for your product

Here you will find quick help, answers to frequently asked questions, and direct access to support.

Service Portal

Please use our product help search to find answers to your questions. Simply enter the article number or EAN to open the appropriate help page directly.

Service Portal

Sensor Form

In rare cases, a sensor may not work correctly. Using our form, you can quickly send your request to our service team and we will take care of a straightforward solution.

Sensor Form

Ratgeber & Tipps

FAQ - Frequently Asked Questions

The symbol flashes when the air pressure drops sharply within a short period of time. This indicates that a storm or strong winds are very likely approaching. As soon as the air pressure stabilizes, the flashing will stop automatically – it therefore serves as a storm warning.
Please proceed as follows:
  1. Remove all batteries from the base station and the outdoor sensor.
  2. Wait at least 3–10 minutes.
  3. Insert the batteries into the base station.
  4. Once the indoor temperature is displayed, insert the batteries into the outdoor sensor.
The signal should now be detected and the outdoor temperature displayed.

Tips:
  • If problems occur, replace all batteries with fresh, non-rechargeable brand batteries. Different battery types or charge levels may cause interference.
  • Do not place the base station near other electronic devices (this may interfere with reception).
  • If necessary, choose a different location for the base station.
If pressing the “DCF” button on the back does not help, reset the station:
  • Briefly press the reset button on the back with a pen
  • If necessary, place the station closer to a window, as reception inside buildings may be limited

Product and safety instructions


Manufacturer: 
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact: 
www.bresser.de


Warning notes
  • RISK OF SUFFOCATION! Improper use of this product can lead to suffocation, especially in children. Therefore, it is essential to follow the safety information below. Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a suffocation risk! This product contains small parts that could be swallowed by children! There is a suffocation risk!
  • Risk of electric shock! This device contains electronic parts powered by a power source (power supply and/or batteries). Improper use of this product poses a risk of electric shock. An electric shock can cause serious to fatal injuries. Therefore, be sure to follow the safety information below. Never leave children unsupervised when handling the device! The device must only be used as described in the instructions, otherwise, there is a risk of electric shock!
  • Explosion risk! Improper use of this product poses an explosion risk. Be sure to follow the safety information below to avoid an explosion. Do not expose the device to high temperatures. Only use the recommended batteries. Do not short-circuit the device and batteries, or throw them into fire! Excessive heat and improper handling can cause short circuits, fires, and even explosions!
  • Risk of material damage! Improper handling may damage the device and/or accessories. Therefore, use the device only according to the following safety information. Do not disassemble the device! In case of a defect, please contact your specialist dealer. They will contact the service center and may send the device for repair if necessary. Do not immerse the device in water! Do not expose the device to shocks, vibrations, dust, prolonged high temperatures, or extreme humidity. This may lead to malfunctions, short circuits, as well as damage to batteries and components. Only use the recommended batteries. Always replace weak or used batteries with a completely new set of fully charged batteries. Do not use batteries from different brands, types, or varying capacities. Remove batteries from the device when it is not used for an extended period.
  • Risk of voltage damage! The manufacturer is not liable for voltage damage resulting from incorrectly inserted batteries!
Skip product gallery

Accessories

%
BRESSER 7-in-1 Weather Station Air-Mon
A breath of fresh air for fresh air enthusiasts, the BRESSER 7-in-1 Weather Center Weather Station Air-Mon merges locally measured weather data with current internet air quality values for your home, featuring a modern weather station with app and color display. Weather station with outdoor sensor for a complete meteorological overview Quickly mounted, the 7-in-1 wireless sensor in conjunction with the stylish base station including integrated thermo-hygrosensor and barometer, swiftly delivers accurate measurements. Look forward to local information about temperature, humidity, air pressure, wind speed, wind direction, precipitation, UV levels, and light intensity. For a broader weather outlook, just check the reliable 7-day forecast including maximum and minimum temperatures. Retrieve meteorological history through the max/min value memory. Fully connected – smart use of the Wi-Fi weather station Specific current air quality values appear via the Wi-Fi connection on the elegant color display. Not at home? Access all data via the intuitive ProWeatherLive App or through a web browser – anytime, anywhere! Breathe deeply again with the air quality monitor The air we breathe matters – protecting our health from pollutants around us is crucial. Therefore, the weather station displays the 6 most important pollutant values in your environment: carbon monoxide, nitrogen dioxide, sulfur dioxide, ozone, as well as fine particulate matter PM2.5 and PM10. And because these are many values, the AQI (Air Quality Index) provides a summarized assessment of the current air quality. Red, yellow, or green – the traffic light as a comfort indicator Is the air too poor for Sunday coffee on the terrace? The comfort level traffic light, available for each air quality factor, gives the answer. Conveniently, indoor temperature and humidity, as well as UV radiation, are also equipped with a traffic light indicator. This allows you to see at a glance the status of indoor climate and the likelihood of sunburn.Premium weather station with additional potential: the extensions In addition to its main functions, the weather station already includes useful features such as automatic time display, moon phases, and an alarm clock. A well-rounded package indeed. And there's more: The BRESSER weather station, with rain gauge, wind gauge, and more, can be tailored to your individual needs with optionally available additional sensors. Optional devices (not included) allow you to easily check, for example, the pool temperature, soil moisture in your flowerbed, or indoor climate in multiple rooms. A CO2 sensor (not included) and an HCHO/VOC sensor (not included) provide even more insights into local air quality. Browse through the compatible BRESSER accessories for individual extensions. Make the 7-in-1 Weather Center Weather Station Air-Mon the new centerpiece of your home. BASE STATION FEATURESWeather station with air quality monitor Wi-Fi connection for retrieving and sharing local data on platforms like ProWeatherLive, WeatherUnderground, and Weathercloud Display of internet data on local AQI (Air Quality Index) and the 6 key pollutants (PM2.5, PM10, NO2, SO2, O3, CO) Comfort level traffic light for air quality measurements, UV levels, and indoor climate Display of precise measurements from the 7-in-1 outdoor sensor (Outdoor temperature, humidity, wind speed, wind direction, precipitation, UV levels, light intensity) Indoor temperature (°C/°F) and humidity Current weather and 7-day forecast with max/min temperatures Air pressure Weather and air quality alert functions Weather data calibration Max/min value memory Time and date (internet time synchronization) Moon phase, sunrise and sunset Alarm clock with snooze function and frost warning Expandable with the following optional sensors for direct measurement on site: Up to 3x thermo-hygro, soil, and/or pool sensor (not included) 1x PM2.5/10 sensor (not included) 1x CO2 sensor (not included) 1x HCHO and VOC sensor (not included) Suitable for table or wall mounting Power supply: AC adapter (included), CR2032 backup battery (not included) Good to know: The sensor pairs with multiple base stations at once – perfect if you want to keep an eye on conditions in different rooms. 7-IN-1 OUTDOOR SENSOR FEATURESMeasuring temperature and humidity Measuring wind speed, direction, and precipitation Measuring UV levels and light intensity Solar panel for extending battery life Range: up to 150 m Power supply: 3x AA batteries (not included) SCOPE OF DELIVERYBase station 7-in-1 wireless sensor Power adapter Operating instructions

Available

€329.00* €349.00* (5.73% saved)
BRESSER Additional / Spare Base Station for Weather Station 7003240
NOTE: This base station is compatible with weather stations with the following item numbers. You can find the item number of your weather station printed on the back of the base station.7002541700322070032307003240700350070035107003700700380070039009080700WSX3001WSX3001CM3LC1WSX3001CM3LC2WSX3001000000 Fancy sharing your personally recorded weather data with your neighbours? Or do you need a replacement base station because yours didn’t quite survive the last house move – or the children’s enthusiastic games of tag? Whether you’re upgrading your setup or replacing a unit, this base station brings all the features of your existing weather station straight back to your screen in no time.FEATURES Graphic weather forecast for the next 11 days (today and next 10 days)/for 24 hours (now and next 23 hours) from the ProWeatherLife server 11-day forecast for maximum and minimum temperature, as well as average temperature and chance of precipitation from the ProWeatherLife server Local visibility and cloud cover via the ProWeatherLive server WiFi connection for publishing local weather data on ProWeatherLive and up to 2 other weather platforms (e.g. AWEKAS) Indoor temperature (°C/°F) and humidity with trend Displays precise measurement data from the 7-in-1 solar outdoor sensor (Outdoor temperature and humidity, wind speed, wind direction, precipitation, UV level, light intensity) Trend graph for air pressure, precipitation, temperature (indoor/outdoor) or humidity (indoor/outdoor) on the display Weather index (perceived outdoor temperature, dewpoint, windchill factor and heat index) Wind gusts and average wind speed, Beaufort scale (wind speed scale) Sunburn time display Air pressure Set weather notifications via the ProWeatherLive server Maximum/minimum value memory Displays the time, date, day of the week and moon phase Sun/moonrise, sun/moonset Alarm clock with frost alarm WSLink app for easy connection to WiFi and weather platform, weather data calibration and for firmware updates 7 languages for day of the week (EN, DE, FR, ES, IT, NL, RU) Supports additional optional sensors Power supply: Mains plug (included), CR2032 back-up battery (not included) SCOPE OF DELIVERY Base station No outdoor sensor included!Mains plug Instruction manual

Available

€159.00*
%
BRESSER 11-Day 4Cast CV Wi-Fi Weather Station 7-in-1
With the BRESSER 11-Day 4Cast CV WiFi Weather Station 7-in-1 you’ll never find yourself left out in the cold by the weather again. The weather station, with 7-in-1 solar outdoor sensor, supplements the on-site data with plenty of practical information from the ProWeatherLive platform. A special highlight: the extensive weather forecast, with the outlook for the next 11 days and a detailed overview of the next 24 hours. Information on local visibility and cloud cover also helps passionate amateur meteorologists to keep a close eye on the weather. You’ll always be up to date, whenever and wherever you are – choose to view your data, incl. max./min. values, conveniently on the clear display of the weather station, in the ProWeatherLive app or in a web browser. Environmentally-friendly and user-friendly – weather station with solar sensor Quick to install and connect to the base station, the 7-in-1 wireless sensor reliably supplies data measured directly on site, including temperature, humidity, wind speed, wind direction, precipitation amount, UV level and light intensity. Meanwhile, the power of the sun ensures smooth operation via the large solar panel. The measuring device needs about 4 hours of direct sunlight (100,000 lux) a day. There isn’t much sun around? Simply insert 3 AA batteries as a back-up during installation and they will take care of the power supply. A comfortable indoor climate with the WiFi weather station Outdoors, the weather station puts in a great performance with anemometer and rain gauge as well as thermometer and hygrometer, UV and light sensors. What about the climate indoors? A thermo-hygro sensor has been integrated into the base station so that you can always keep an eye on the indoor temperature and humidity. The trend display, which can be called up directly on the display, is perfect for preventing excessively dry air or mould. Trends you will be able to see include development of the room climate, so that you can respond by introducing fresh air or by humidifying if you need to. In addition, with ProWeatherLife, you can receive notifications when the indoor temperature and humidity change, as well as important weather parameters. Optional extensions for your WiFi weather station Want to adapt your weather station to your needs? No problem! It comes with a range of optional extensions through the following additional sensors (not included): Optional thermo-hygro sensors for indoor climate Optional soil and pool sensors for the garden Optional water detector and lightning sensors Optional PM2.5/10, CO2 and HCHO+VOC sensors for air quality For the perfect extensions, browse our BRESSER accessories to see which additional sensors are compatible (not included). Stay up to date on your local weather and indoor climate easily, whenever and wherever, with the BRESSER 11-Day 4Cast CV WiFi Weather Station 7-in-1. BASE STATION FEATURES Graphic weather forecast for the next 11 days (today and next 10 days)/for 24 hours (now and next 23 hours) from the ProWeatherLife server 11-day forecast for maximum and minimum temperature, as well as average temperature and chance of precipitation from the ProWeatherLife server Local visibility and cloud cover via the ProWeatherLive server WiFi connection for publishing local weather data on ProWeatherLive and up to 2 other weather platforms (e.g. AWEKAS) Indoor temperature (°C/°F) and humidity with trend Displays precise measurement data from the 7-in-1 solar outdoor sensor (Outdoor temperature and humidity, wind speed, wind direction, precipitation, UV level, light intensity) Trend graph for air pressure, precipitation, temperature (indoor/outdoor) or humidity (indoor/outdoor) on the display Weather index (perceived outdoor temperature, dewpoint, windchill factor and heat index) Wind gusts and average wind speed, Beaufort scale (wind speed scale) Sunburn time display Air pressure Set weather notifications via the ProWeatherLive server Maximum/minimum value memory Displays the time, date, day of the week and moon phase Sun/moonrise, sun/moonset Alarm clock with frost alarm WSLink app for easy connection to WiFi and weather platform, weather data calibration and for firmware updates 7 languages for day of the week (EN, DE, FR, ES, IT, NL, RU) Supports additional optional sensors Power supply: Mains plug (included), CR2032 back-up battery (not included) Good to know: The sensor pairs with multiple base stations at once – perfect if you want to keep an eye on conditions in different rooms. FEATURES OF 7-IN-1 OUTDOOR SENSOR Measurement of temperature, humidity, wind speed, wind direction, precipitation quantity, UV level and light intensity Powered via a large movable solar panel In case of insufficient sunlight operation via 3x AA batteries (not included)Range: 150 mSize: 390 x 174 x 465 mm SCOPE OF DELIVERY Base station Solar-powered outdoor sensor Power adapter Instruction manual

Available

€289.00* €299.00* (3.34% saved)
Skip product gallery

Customers also bought

BRESSER Soil Temperature and Moisture Meter
NOTE: This sensor is compatible with weather stations with the following item numbers. You can find the item number of your weather station printed on the back of the base station.15196151971519815199152011543915440156591566016479700254170025807002581700258270025857002586700261070026207003100CM30007003100GYE0007003100HZI0007003100QT5000700315070032007003210700322070032307003240700330070034007003500700351070035207003600CM30007003600GYE0007003600QT50007003700700380070039007004406700630090806009080700908080070031000000007003600000000WSH4102WSX1001CM3LC1WSX1001CM3LC2WSX3001WSX3001CM3LC1WSX3001CM3LC2WSX1001000000WSX3001000000 This additional sensor allows you to take two additional practical measurements with your BRESSER weather station. In addition to the soil temperature, the sensor can also measure the soil moisture – ideal for plant lovers and gardeners. Measurements are sent to the base station at 60 second intervals. The soil moisture meter can be positioned up to 150 metres away from the base station. There are also 7 different channels to choose from. And thanks to the weatherproof housing, the wireless sensor is able to withstand adverse weather conditions. FEATURES Wireless and compact soil sensor Measures the soil humidity Measures the soil temperature Transmission interval: 60 seconds Extra-long range of up to 150 metres Cable length: approx. 140 cm 7 available channels LED indicator for data transmission Weatherproof housing Battery-operated with 2x AA batteries (not included) DELIVERY CONTENT Soil sensor Instruction manual

Available

€39.00*
%
BRESSER Water Detector
NOTE: This sensor is compatible with weather stations with the following item numbers. You can find the item number of your weather station printed on the back of the base station.151961519715198152011543915440156597002610700262070032007003210700322070032307003240700352070038009080700 Whether it’s the washing machine in your basement or the dishwasher in the kitchen, old appliances are susceptible to water leaks. The BRESSER water detector triggers a 90 dB alarm tone when it detects a leak. If the sensor is connected to your BRESSER weather station, a symbol will also appear on the display of your base station, allowing you to take action before the water causes serious damage. Also a handy helper in aquaristics, where leaks occur frequently, for example when the sealing gasket on the external filter needs to be changed. FEATURES Water sensor for detecting water leaks Loud 90 dB alarm tone Range of up to 150 mCable length: approx. 140 cm 7 available channels Wireless and compact design Power supply: 2x AA batteries (not included) DELIVERY CONTENT Water detector Instruction manual

Available

€29.00* €45.00* (35.56% saved)
BRESSER 4CAST 10" Wi-Fi Home Weather Station with 8-in-1 Sensor
Stay one step ahead of the weather with the BRESSER 4CAST 10" Wi-Fi Home Weather Station with 8-in-1 Sensor. Thanks to the large, clear 10-inch (25.4 cm) display, you’ll have all the key data in front of you at a glance. Standout features include the detailed forecast and the WBGT heat stress level, helping you stay safe and comfortable on hot days. And with a Wi-Fi connection, your personalised weather updates are always within easy reach - wherever you are. Comprehensive forecasts straight to your screen Planning a barbecue or a family outing? The local 24-hour and 14-day forecasts, including maximum and minimum temperatures and chance of rain, powered by the ProWeatherLife server, make it easy to pick the perfect time. This weather station with outdoor sensor also provides internet-based data on visibility and cloud cover. Want to share your readings? Simply publish them via Wi-Fi to ProWeatherLive or Weathercloud - and connect with the global weather community. 8-in-1 outdoor sensor: compact, precise, reliable This clever all-rounder measures temperature, humidity, wind speed and direction, rainfall, UV level, light intensity and WBGT. The large adjustable solar panel keeps it running sustainably, while 3 AA batteries (not included) step in when sunlight is limited. With a range of up to 150 m and a durable, weatherproof housing, you can set it up just where you need it for the most accurate results. WBGT - stay safe in the heat When the mercury soars, heat can take a toll on your body. That’s where the Wet Bulb Globe Temperature (WBGT) comes in. It combines three factors - air temperature, mean radiant temperature and wet-bulb temperature - to calculate heat stress accurately. If the wet-bulb temperautre value stays above 35 °C, your body starts absorbing heat from its surroundings, which can quickly become dangerous. Whether you’re training, gardening or enjoying the outdoors, this digital weather station gives you the exact WBGT reading at all times. The heat stress index also provides a simple warning, so you know when to take a break. Indoor climate check included A healthy climate isn’t just for outside. The base station also measures indoor temperature and humidity via its built-in thermometer and hygrometer. The handy comfort indicator lets you know straight away whether your home or office needs airing. It also tracks air pressure, a reliable sign of changing weather. Detailed weather analysis with alerts This garden weather station doesn’t stop at the basics. It also calculates feels-like temperature, heat index, dew point and wind chill, plus shows you wind strength using the Beaufort scale. The max/min memory highlights local weather trends, and with ProWeatherLive alerts you’ll always be prepared for what’s coming. With its rain gauge and wealth of features, it’s like having your own personal weather assistant. Secure your professional weather overview now - with the BRESSER 4CAST 10" Wi-Fi Home Weather Station with 8-in-1 Sensor! FEATURES BASE STATION 24-hour and 14-day local forecasts with temperature highs, lows and rain probability (via ProWeatherLife server) Large 10-inch (25.4 cm) colour display Wi-Fi connection for publishing data to ProWeatherLive and Weathercloud Internet-based visibility and cloud cover Precise measurements from the 8-in-1 solar-powered outdoor sensor(temperature, humidity, wind speed/direction, rainfall, UV level, light intensity, WBGT) Indoor temperature and humidity with comfort indicator Air pressure display Heat stress index Beaufort scale for wind strength Weather indices: feels-like temperature, heat index, dew point, wind chill Max/min memory Weather alerts via ProWeatherLive Time, date, weekday and moon phase Sunrise/sunset and moonrise/moonset times Backlight with automatic dimmer WSLink app for easy Wi-Fi setup, data calibration and firmware updates Compatible with additional optional sensors (not included, see BRESSER accessories): Optional thermo-hygro sensors for indoor climate Optional soil and pool sensors for the garden Optional water detectors and lightning sensors Optional PM2.5/10, CO2 and HCHO+VOC sensors for air quality Power supply: mains adapter (included), 1x CR2032 backup battery (not included) Good to know: The sensor pairs with multiple base stations at once – perfect if you want to keep an eye on conditions in different rooms.FEATURES SENSOR Measures temperature, humidity, wind speed, wind direction, rainfall, UV level, light intensity and WBGT Powered by large, adjustable solar panel Back-up power with 3x AA batteries (not included) Weatherproof housing Range up to 150 m SCOPE OF DELIVERY Base station with mains adapter 8-in-1 outdoor sensor Instruction manual

Available

€299.00*
Skip product gallery

Customers also viewed

BRESSER Thermo-Hygro Sensor 7 Channel 868 MHz
NOTE: This sensor is compatible with weather stations with the following item numbers. You can find the item number of your weather station printed on the back of the base station.1565970025317002541700257170025807002581700258270025857002586700261070026207003100CM30007003100GYE0007003100HZI0007003100QT5000700315070032007003210700322070032307003240700330070034007003500700351070035207003600CM30007003600GYE0007003600QT50007003700700380070039007004406700630090806009080700908080070031000000007003600000000WSH4102WSX1001CM3LC1WSX1001CM3LC2WSX3001WSX3001CM3LC1WSX3001CM3LC2WSX1001000000WSX3001000000 Remote sensor for measuring of temperature and humidity. Seven channels settable. With extra long radio range of 150 meters on a radio frequency of 868 MHz. Good news for smart home owners: this sensor can be seamlessly integrated into the leading smart home system when paired with a compatible Tuya-enabled weather station. FEATURES Temperature measuring Humidity measuring 7 channels settable RC frequency: 868 MHz Extra long radio range of 150 meters! Suitable for smarthome systems by Tuya Powered by battery; 2x AA (LR6) (not included!) SCOPE OF DELIVERY Remote sensor

Available

€34.95*
%
BRESSER Water Detector
NOTE: This sensor is compatible with weather stations with the following item numbers. You can find the item number of your weather station printed on the back of the base station.151961519715198152011543915440156597002610700262070032007003210700322070032307003240700352070038009080700 Whether it’s the washing machine in your basement or the dishwasher in the kitchen, old appliances are susceptible to water leaks. The BRESSER water detector triggers a 90 dB alarm tone when it detects a leak. If the sensor is connected to your BRESSER weather station, a symbol will also appear on the display of your base station, allowing you to take action before the water causes serious damage. Also a handy helper in aquaristics, where leaks occur frequently, for example when the sealing gasket on the external filter needs to be changed. FEATURES Water sensor for detecting water leaks Loud 90 dB alarm tone Range of up to 150 mCable length: approx. 140 cm 7 available channels Wireless and compact design Power supply: 2x AA batteries (not included) DELIVERY CONTENT Water detector Instruction manual

Available

€29.00* €45.00* (35.56% saved)
BRESSER Spa and Pool thermometer
NOTE: This sensor is compatible with weather stations with the following item numbers. You can find the item number of your weather station printed on the back of the base station.151961519715198151991520115439154401565915660164797002531700254170025807002581700258270025857002586700261070026207003100CM30007003100GYE0007003100HZI0007003100QT5000700315070032007003210700322070032307003240700330070034007003500700351070035207003600CM30007003600GYE0007003600QT50007003700700380070039007004406700630090806009080700908080070031000000007003600000000WSH4102WSX1001CM3LC1WSX1001CM3LC2WSX3001WSX3001CM3LC1WSX3001CM3LC2WSX1001000000WSX3001000000 Want to cool off in your pool? This wireless and floating pool thermometer from BRESSER will tell you whether the water is at an optimal temperature. Measurements are shown on the built-in LCD display. You can also connect the pool thermometer to your BRESSER weather centre so that you can check the pool temperature from the comfort of your own home. FEATURES Floating pool sensor for measuring the water temperature LCD display for displaying the temperature (°C/°F) Wireless frequency: 868 MHz Wireless transmission range of up to 30 m to optional base station 7 available channels Waterproof (IPX7) Powered by 2x AA batteries (not included) DELIVERY CONTENT Pool thermometer Instruction manual

Available

€39.00*