The W0911 sensor with LoRaWAN network output measures temperature from an external Pt1000 probe on the cable and can be installed directly in the measured environment thanks to its IP65-rated housing. LoRa devices are powered by a replaceable battery with a lifespan of up to 10 years (3 years standard). External power is also available with optional accessories.
Measured values are transmitted wirelessly at adjustable intervals (from 5 minutes to 24 hours) to COMET's cloud storage, where users can access them via a computer or mobile device. The sensors offer remote configuration from the COMET cloud and feature the ability to monitor up to two alarm thresholds, with any excess indicated 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 housing
- Calibration certificate with declared metrological traceability to standards according to CSN EN ISO/IEC 17025
- Pre-configured gateway available as an accessory at an additional cost. For ease of use, we offer the pre-configured SP041 LoRaWAN gateway, which is fully prepared to communicate with COMET Cloud and our sensors. This option simplifies the configuration
- process and saves users time
Technical data
Measured value
Temperature
TEMPERATURE SENSOR - external probe Pt1000
- Measuring range -90 to +260 °C
- Accuracy ±0.2 °C in the range -90 to +100 °C; ±0.2 % from reading from +100 to +260 °C
- Resolution 0.1 °C
- Response time t90 of temperature measurement (temperature step 20°C, air flow approximately 1m/s) 10 minutes
GENERAL TECHNICAL DATA
- Operating temperature -30 to +60 °C
- Channels 1x external temperature 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 LoRaWAN EU 868 frequency plan
Europe:
Aland Islands, Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic, 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, Cape Verde, Comoros, Ivory Coast, 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, Saint 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
