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W0941 IoT Wireless Temperature Sensor for 4 external Pt1000 probes with ELKA connector, LoRaWAN network

The W0941 sensor with LoRaWAN network output measures temperature from four external Pt1000 probes 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).

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)
  • 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 easy use, we offer several types of preconfigured LoRaWAN gateways that are fully prepared for communication with COMET Cloud and our sensors. This option simplifies the setup process and saves time for users

 

With a newly purchased wireless sensor with LoRaWAN connectivity, you receive 1 year of COMET Cloud for free; an additional year of operation in COMET Cloud then requires 1 credit.

The sensor is preconfigured for COMET Cloud. If you want to connect it to your own cloud, please state this in your order. Only then will you receive the necessary access details.

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Measured value

Temperature

TEMPERATURE SENSOR – external probe Pt1000

Measuring range -200 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 4x external temperature probe, ELKA connector
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, C size, capacity 8.5 Ah
Protection class IP65
Dimensions 179 x 134 x 45 mm without connectors
Weight (including batteries) 350g
Warranty 3 years

Please contact sales for information about our large range of temperature sensors for use with this device

from four external Pt1000 probes on the cable

 

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