U4440GSIM IoT Wireless Temperature, Relative Humidity, CO2 and atmospheric pressure Datalogger with built-in 4G modem and SIM

4G datalogger is designed to record temperature, humidity, atmospheric pressure and CO2. In case of exceeded set limits, SMS and JSON messages can be sent via 4G data connection. Measured values can be sent to the internet storage COMET Cloud, which is a complete monitoring, alarm and analysis system.

It is also possible to set the regular sending of JSON messages to COMET Database, the sending interval is adjustable. Alarms are also indicated locally by LED, LCD and acoustically by built-in beeper.
The recording is performed in a non-volatile electronic memory. The data can be transferred to a PC via included USB-C cable.

4G recorder includes Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.

Optional CO₂ measuring range extension from the standard 0 to 5,000 ppm up to 0 to 10,000 ppm (available at extra cost):

Extended measuring range: 0 to 10 000 ppm
Accuracy in extended range: 100 ppm + 5% of the measured value at 25 °C and 1013 hPa

With a newly purchased IoT wireless datalogger with a built-in modem, you receive 3 months of COMET Cloud for free; a full year of operation in COMET Cloud then requires 1 credit.

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Technical Features
Related Resources

Measured value

Temperature

Relative humidity

Counted values (dew point…)

CO2

Atmospheric pressure

TEMPERATURE SENSOR

Measuring range -20 to +60 °C

Accuracy ±0.4 °C

Resolution 0.1 °C

HUMIDITY SENSOR

Measuring range 0 to 100 % RH

Accuracy ± 1.8 % RH

Resolution 0.1% RH

DEW POINT

Measuring range -90 to +60 °C

Accuracy ±1.5 °C at ambient temperature T <25 °C and RH >30 %

Resolution 0.1 °C

CO₂ SENSOR

Measuring range 0 to 5000 ppm

Accuracy ±(50ppm +3% from reading) at 25°C and 1013hPa

Resolution 1 ppm

ATMOSPHERIC PRESSURE SENSOR SENSOR

Measuring range 600 to 1100 hPa

Accuracy ±1.3 hPa at 23 °C

Resolution 0.1 hPa

4G MODEM PARAMETERS

LTE Cat 1 LTE FDD/GSM/GPRS/EDGE

Supported network types GSM/GPRS/EDGE 900/1800 MHz
LTE FDD B1/B3/B5/B7/B8/B20

GENERAL TECHNICAL DATA

Operating temperature -20 to +60 °C

Channels internal sensor for temperature, humidity, CO₂ and atmospheric pressure

Memory 500,000 values in noncyclic logging mode; 350,000 values in cyclic record mode

Recording interval to the internal memory adjustable from 1 second to 24 hours

Recording interval to the COMET Cloud from 5 minutes

Interval for measuring and evaluating alarms adjustable 1 s, 10 s, 1 min

Recording mode noncyclic – data logging stops after filling the memory
cyclic – after filling memory oldest data is overwritten by new

Real time clock year, leap year, month, day, hour, minute, second

Power rechargeable Li-Ion battery A8200, 3.6V/5200mAh

Protection class IP20

Dimensions 61 x 93 x 53 mm, with antenna 120 x 93 x 53 mm

Weight (including batteries) approx. 260 g

Warranty 3 years

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