Singapore Comet W8861 IoT Wireless Temperature, Atmospheric Pressure and CO2 Sensor, powered by Sigfox Comet from Mobicon-Remote Electronic Pte Ltd

Sensor power by Sigfox with internal temperature and atmospheric pressure sensor and input for external CO2 concentration probe (1% or 5%).

The device measures the temperature, atmospheric pressure from the internal sensors and CO2 from attachable and replaceable external probe on the cable - you can choose it from an optional accessory.

The measured values are sent in an adjustable time interval (10 min to 24 h) by radio transmission in the Sigfox network to the COMET Cloud, from which the user can view them using a personal computer or mobile device.

The instrument can monitor up to 2 alarm limits of the measured variable. Exceeding these limits is indicated by sending an emergency message. COMET Cloud transmits this alarm message via e-mail to the selected user. The device is suitable for applications that tolerate the delay of information delivered by Sigfox (max. 10 min).

Highlights:

wireless transmission of measured values and alarm states
two slots for batteries for longer operation time
battery power (C size 3.6 V) with low battery indication (battery life up to 7 years)
remote setting of the device from COMET Cloud (maximum once a day)
IP65 for usage of device on outside applications
Traceable calibration certificate in accordance with EN ISO / IEC 17025

The availability of Sigfox network in a particular location

Check your Sigfox network availability before you buy your device. COMET devices in the Sigfox network can be used anywhere in the RC1 zone. Learn more about Sigfox (RC) Radio Zones.

TECHNICAL DATA

MEASURED VALUE

Temperature

CO2

Atmospheric pressure

TEMPERATURE SENSOR

Measuring range -20 to +60 °C

Accuracy ±0.4 °C

Resolution 0.1 °C

Response time t90 of temperature measurement (temperature step 20°C, air flow approximately 1m/s) t90 < 8 min (temperature change 20 °C)

CO2 SENSOR

Measuring range 0 to 10 000 ppm

Accuracy 100 ppm + 5% of the measured value at 23 °C a 1 013 hPa

Measuring range 0 to 50 000 ppm

Accuracy ±(1,5 % from full scale +2% from the measured value)

Resolution 0.001 % CO2 payload protocol (cloud)
0.01 % CO2 device display

External probe cable length CO2 1, 2 or 4 meters

ATMOSPHERIC PRESSURE SENSOR SENSOR

Measuring range 700 to 1100 hPa

Accuracy ±1.3 hPa at 23 °C from 800 to 1100 hPa

Resolution 0.1 hPa

GENERAL TECHNICAL DATA

Operating temperature -20 to +60 °C

Channels internal sensor for temperature, humidity and atmospheric pressure + 1x external CO2 sensor

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 RC1 (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, C size, capacity 8.5 Ah

Protection class IP54 electronics, IP65 sensor CO2

Number of battery slots 2

Dimensions 179 x 134 x 45 mm

Weight (including batteries) 340g

Warranty 3 years

BATTERY LIFETIME

Sending interval	10 minutes	20 minutes	30 minutes	1 hour	3 hours	6 hours	12 hours	24 hours
1x lithium battery A4206 - 8500mAh	10 months	1 year	1,5 years	2 years	3 years	3,2 years	3,4 years	3,5 years
2x lithium battery A4206 - 8500mAh	20 months	2 years	3 years	4 years	6 years	6,4 years	6,8 years	7 years

INCLUDED IN DELIVERY:

CO2 EXTERNAL PROBES ARE NOT INCLUDED IN DELIVERY. THE PROBE WITH A CABLE LENGTH 1, 2 OR 4 METERS MUST BE ORDERED

INSTRUCTION MANUAL DATASHEET

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