IoT wireless thermometer, hygrometer for external probe, LoRaWAN network

The W3911 sensor with LoRaWAN network output measures the temperature and humidity from an external probe on the cable and can be installed directly in the measured environment thanks to its IP65-rated enclosure. LoRa devices are powered by a replaceable battery with a lifespan of up to 10 years (3 years standard). External power with optional accessories is also available. The sensor can be used with a suitable sensor cap even in more demanding conditions.

Measured values are transmitted wirelessly at adjustable intervals (from 5 minutes to 24 hours) to the COMET Cloud storage, where they are accessible to users via computer or mobile device. The sensors offer remote configuration from the COMET Cloud and feature the capability to monitor up to two alarm thresholds, with any exceedance signaled by an alert sent to the user.

Key Features

Wireless transmission of measured values and alarm states
Battery-powered with low battery indicator (battery life up to 10 years) and external power option
Remote device configuration via COMET Cloud
IP65-rated enclosure
Calibration certificate with declared metrological traceability of standards according to CSN EN ISO/IEC 17025
Preconfigured Gateway available as an accessory at extra cost. For ease of use, we offer the pre-configured LoRaWAN Gateway SP041, which is fully ready for communication with COMET Cloud and our sensors. This option simplifies the setup process and saves time for users

Art nr

W3911
Garanti

3 År

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Tekniska specifikationer

Mätvärde

Temperatur

Relativ luftfuktighet

Beräknade värden (daggpunkt…)

TEMPERATURE SENSOR

Measuring range according to the connected probe Digi/E

Accuracy according to the connected probe Digi/E

Resolution 0.1 °C

Response time t90 of temperature measurement (temperature step 20°C, air flow approximately 1m/s) according to the connected probe Digi/E

HUMIDITY SENSOR

Measuring range according to the connected probe Digi/E

Accuracy according to the connected probe Digi/E

Resolution 0.1% RH

DEW POINT

Measuring range according to the connected probe Digi/E

Accuracy according to the connected probe Digi/E

Resolution according to the connected probe Digi/E

GENERAL TECHNICAL DATA

Operating temperature -30 to +60 °C

Channels 1x connectable temperature+humidity probe

Message transmission interval adjustable 5-10-15-20-30 minutes, 1-2-3-4-6-8-12-24 hours

Operating frequency Europe 863-870 MHz

Maximum transmission power 25 mW (14 dBm)

Typical range of transmitter 15 km in the field, 2 km in the city (sensor in building)

Antenna internal, gain 2,15 dBi

Maximum receiver sensitivity -136 dBm @BW=125 kHz, SF=12

Power Lithium battery 3.6 V, AA size

Protection class IP65

Dimensions 126 x 89 x 40mm

Weight (including batteries) 150g

Warranty 3 years

Countries using the LoRaWAN EU 868 frequency plan

Europe:

Aland Islands, Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czechia, Cyprus, Denmark, Estonia, Faroe Islands, Finland, France, Georgia, Germany, Gibraltar, Greece, Holy See, Hungary, Iceland, Ireland, Isle of Man, Italy, Jersey, Latvia, Liechtenstein, Lithuania, Luxembourg, Macedonia, Malta, Moldova, Monaco, Montenegro, Netherlands, Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Svalbard and Jan Mayen, Sweden, Switzerland, Ukraine, United Kingdom

Africa:

Benin, Botswana, Burundi, Cabo Verde, Comoros, Côte d’Ivoire, Egypt, Equatorial Guinea, Kenya, Madagascar, Mauritania, Mayotte, Namibia, Nigeria, Reunion, Rwanda, Senegal, Somalia, South Africa, Tunisia, Zambia

Asia:

Armenia, Bahrain, Bhutan, Brunei Darussalam, Cambodia, Iran, Kuwait, Lao People’s Democratic Republic, Lebanon, Oman, Philippines, Qatar, Saudi Arabia, Syria, Turkey, United Arab Emirates

North America:

Greenland, Saint Pierre and Miquelon

South America:

Bonaire, Sint Eustatius and Saba, Falkland Islands, French Guiana, Guadeloupe, Martinique, Saint Barthelemy, Saint Martin

Oceania and Others:

French Polynesia, New Caledonia, Samoa, Wallis and Futuna, Bouvet Island, French Southern Territories, South Georgia and the South Sandwich Islands

IoT wireless thermometer, hygrometer for external probe, LoRaWAN network

Key Features

Tekniska specifikationer

Mätvärde

TEMPERATURE SENSOR

HUMIDITY SENSOR

DEW POINT

GENERAL TECHNICAL DATA

Countries using the LoRaWAN EU 868 frequency plan

Europe:

Africa:

Asia:

North America:

South America:

Oceania and Others:

Tillbehör

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