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dataloggers, thermometers, hygrometers...
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IoT Wireless Temperature and Relative Humidity Datalogger for external probe, with built-in 4G modem

GSM datalogger is designed to record temperature and humidity from external probe. 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.

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.

 

  • code
    U3121G
  • Warranty
    3 years

Technical data

Measured value

Temperature
Relative humidity
Counted values (dew point…)

TEMPERATURE SENSOR

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) 8 min

HUMIDITY SENSOR

Measuring range according to the connected probe Digi/E
Accuracy according to the connected probe Digi/E
Resolution 0.1% RH

DEW POINT

Measuring range according to the connected probe Digi/E
Accuracy according to the connected probe Digi/E
Resolution 0.1 °C

GSM 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 1x connectable temperature+humidity probe
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 IP67
Dimensions 61 x 93 x 53 mm, with antenna 120 x 93 x 53 mm
Weight (including batteries) approx. 260 g
Warranty 3 years

Optional accessories and download

Ultra thin digital temperature/humidity probe

Ultra thin digital temperature/humidity probe

Temperature range: -10 to 60°C
code DIGIH/E-1
Ultra thin digital temperature/humidity probe, cable 2 m

Ultra thin digital temperature/humidity probe, cable 2 m

Temperature range: -10 to 60°C
code DIGIH/E-2
Ultra thin digital temperature/humidity probe, cable 5 m

Ultra thin digital temperature/humidity probe, cable 5 m

Temperature range: -10 to 60°C
code DIGIH/E-5
Digital temperature/humidity probe

Digital temperature/humidity probe

Temperature range: -20 to 80°C
code DIGIL/E
Digital temperature/humidity probe, cable 1 m

Digital temperature/humidity probe, cable 1 m

Temperature range: -30 to 105°C
code DIGIL/E-1
Digital temperature/humidity probe, cable 10 m

Digital temperature/humidity probe, cable 10 m

Temperature range: -30 to 105°C
code DIGIL/E-10
Digital temperature/humidity probe, cable 15 m

Digital temperature/humidity probe, cable 15 m

Temperature range: -30 to 105°C
code DIGIL/E-15
Digital temperature/humidity probe, cable 2 m

Digital temperature/humidity probe, cable 2 m

Temperature range: -30 to 105°C
code DIGIL/E-2
Digital temperature/humidity probe, cable 5 m

Digital temperature/humidity probe, cable 5 m

Temperature range: -30 to 105°C
code DIGIL/E-5
Digital temperature/humidity probe

Digital temperature/humidity probe

Temperature range: -20 to 80°C
code DIGIS/E
Digital temperature/humidity probe, cable 1 m

Digital temperature/humidity probe, cable 1 m

Temperature range: -10 to 60°C
code DIGIS/E-1
Digital temperature/humidity probe, cable 10 m

Digital temperature/humidity probe, cable 10 m

Temperature range: -10 to 60°C
code DIGIS/E-10
Digital temperature/humidity probe, cable 15 m

Digital temperature/humidity probe, cable 15 m

Temperature range: -10 to 60°C
code DIGIS/E-15
Digital temperature/humidity probe, cable 2 m

Digital temperature/humidity probe, cable 2 m

Temperature range: -10 to 60°C
code DIGIS/E-2
Digital temperature/humidity probe, cable 5 m

Digital temperature/humidity probe, cable 5 m

Temperature range: -10 to 60°C
code DIGIS/E-5

AC/DC adapter 230Vac to 5Vdc/2.1 A, EU

AC/DC adapter 230Vac to 5Vdc/2.1 A, EU

code A1879eu
AC/DC adapter 230Vac to 5Vdc/2.1 A, UK

AC/DC adapter 230Vac to 5Vdc/2.1 A, UK

code A1879uk
AC/DC adapter 230Vac to 5Vdc/2.1 A, US

AC/DC adapter 230Vac to 5Vdc/2.1 A, US

code A1879us
Accupack A8205 for dataloggers "U"

Accupack A8205 for dataloggers "U"

code A8205

USB-C cable, 1 meter

USB-C cable, 1 meter

code MP053

wall holder for datalogger - kopie

wall holder for datalogger - kopie

code LP100
Holder for mounting the GSM or CO2 Datalogger on magnetic surfaces

Holder for mounting the GSM or CO2 Datalogger on magnetic surfaces

code LP103

COMET Database

COMET Database

code CDB
COMET Cloud

COMET Cloud

code cloud

code cloud_app
COMET Vision - Software for Dataloggers and Multiloggers

COMET Vision - Software for Dataloggers and Multiloggers

code CV
Database Viewer for Comet Database

Database Viewer for Comet Database

code DBV

COMETEO Professional Multi-Plate Radiation Shield for Weather Sensors

COMETEO Professional Multi-Plate Radiation Shield for Weather Sensors

code F8000

code LP105

Software

download-icon Comet Vision Software (2.3.8801.28020 dbapi 21.1)
16.23 MB
download-icon Comet Database One Click Installer (21.1-IIi)
487.31 MB
download-icon Conversions - application for recalculation of values
694.50 KB
download-icon COMET Cloud Lite - Android (Google Play)
download-icon COMET Cloud Lite - iOS (App Store)

Others

download-icon Terms and Conditions COMET System s.r.o.
133.12 KB

Manuals

download-icon Instruction Manual
3.29 MB
download-icon Quick Start Manual
1.26 MB
download-icon Safety Information
110.57 KB
download-icon Manual for Calibration (accuracy verification) and Adjustment for Dataloggers Uxxxx(M)
427.80 KB
download-icon Declaration of Conformity
97.21 KB

Catalogs

download-icon CATALOG - Dataloggers
3.57 MB
download-icon CATALOG - GSM loggers
3.00 MB

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