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manufacturer of measuring instruments
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IoT thermometer, hygrometer, barometer for external probe, Sigfox

code: W7811

The instrument measures the temperature and humidity from external probe. Built-in atmospheric pressure sensor. It features a simple, compact design and is positioned directly in the measured area. Measured values are displayed on the display and are regularly sent, in an adjustable time interval (10 min to 24 h), by radio transmission in Sigfox to Comet Cloud.

The temperature and humidity probe is not included in delivery, probe of the appropriate length and design you can choose in optional accessories.

The device includes Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.

Included in delivery:

Radio configuration zone RCZ1. More information about Sigfox Radio Configurations (RC).
Get Sigfox coverage details in one step. Check the Sigfox coverage in your region.

Technical data

Measured value Temperature
Relative humidity
Counted values (dew point…)
Atmospheric pressure
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
Measuring range according to the connected probe Digi/E
Accuracy according to the connected probe Digi/E
Resolution 0.1% RH
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
Measuring range 600 to 1100 hPa
Accuracy ±1.3 hPa at 23 °C from 800 to 1100 hPa
Resolution 0.1 hPa
Operating temperature -30 to +60 °C
Channels internal atmospheric pressure sensor, 1x connectable temperature+humidity probe
Message transmission interval adjustable 10 minuteses, 20 minutes, 30 minutes,1 hour, 3 hours, 6 hours, 12 hours, 24 hours
Operating frequency 868 MHz
Maximum transmission power 25mW
Sigfox radiation class 0U
Radio configuration zone RCZ1 (operation is possible in Europe, Iran, Oman and South Africa)
Typical range of transmitter 50 km in the field, 3 km in the city
Power Lithium battery 3.6 V, AA size
Protection class IP65
Dimensions 126 x 89 x 40mm
Weight (including batteries) 150g
Warranty 3 years



Aplikace - Zdravotnictví a laboratoře

Healtcare and laboratories - Monitoring of storage areas at temperatures up to -200 °C.

Aplikace - Průmysl

Industry and production - monitoring temperature and humidity in food, pharmaceutical, aerospace etc.

Aplikace - Sklady

Production facilities and warehouses - Monitoring of storage conditions and production processes in the temperature range -200 ° C to + 600 ° C. Sending data to COMET Database or SCADA third-party systems.

Aplikace - Serverovny a datová centra

Meteorology - COMET sensors together with COMET radiationshields are the ideal basis for weather stations for long-term weather, climate and air monitoring.

Aplikace - Serverovny a datová centra

Data centers, server rooms - Temperature and humidity monitoring, data center monitoring, RACK stands, including flood status reports, opening / closing of doors (windows), motion, smoke. SNMP monitoring, remote alarms by email and Syslog.

Aplikace - Automatizace budov a HVAC

Building management - Our instruments which measure temperature, humidity, atmospheric pressure and CO2 are an integral part of these industry-leading solutions.

Features description:

* the features may vary depending on the device type
● accurate measurement of temperature, relative humidity, dew-point, barometric pressure, two-state events
● cheap wireless communication for long distances
● indication of alarms via SMS and e-mail
● COMET Cloud software for data analysis and storage
● easy to use software COMET Database for data analysis on PC
● rugged design
● long battery life up to 8 years
3 years warranty Traceable calibration certificate IoT Sensor - SIGFOXIoT Sensor - SIGFOXComet Cloud WirelessTemperature sensor Humidity sensorDew-pointBarometric pressure
Two-state inputsAlarmE-mail alarmBattery powerIP protection

COMET Cloud and Sigfox Technology

COMET Cloud & SigFox Technology