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

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Product variants

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

Temperature range: -10 to 60°C

code DIGIH/E-1

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

Temperature range: -10 to 60°C

code DIGIH/E-5

Digital temperature/humidity probe DIGIL/E, ELKA connector

Temperature range: -20 to 80°C

code DIGIL/E

Digital temperature/humidity probe DIGIL/E-1, ELKA connector, cable 1 meter

Temperature range: -30 to 105°C

code DIGIL/E-1

Digital temperature/humidity probe DIGIL/E-10, ELKA connector, cable 10 meters

Temperature range: -30 to 105°C

code DIGIL/E-10

Digital temperature/humidity probe DIGIL/E-15, ELKA connector, cable 15 meters

Temperature range: -30 to 105°C

code DIGIL/E-15

Digital temperature/humidity probe DIGIL/E-2, ELKA connector, cable 2 meters

Temperature range: -30 to 105°C

code DIGIL/E-2

Digital temperature/humidity probe DIGIL/E-5, ELKA connector, cable 5 meters

Temperature range: -30 to 105°C

code DIGIL/E-5

Digital temperature/humidity probe DIGIS/E, ELKA connector

Temperature range: -20 to 80°C

code DIGIS/E

Digital temperature/humidity probe DIGIS/E-1, ELKA connector, cable 1 meter

Temperature range: -10 to 60°C

code DIGIS/E-1

Digital temperature/humidity probe DIGIS/E-10, ELKA connector, cable 10 meters

Temperature range: -10 to 60°C

code DIGIS/E-10

Digital temperature/humidity probe DIGIS/E-15, ELKA connector, cable 15 meters

Temperature range: -10 to 60°C

code DIGIS/E-15

Digital temperature/humidity probe DIGIS/E-2, ELKA connector, cable 2 meters

Temperature range: -10 to 60°C

code DIGIS/E-2

Digital temperature/humidity probe DIGIS/E-5, ELKA connector, cable 5 meters

Temperature range: -10 to 60°C

code DIGIS/E-5

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

code A1879eu

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

code A1879uk

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

code A1879us

Accupack A8205 for dataloggers "U"

code A8205

Accredited temperature and relative humidity calibration

code SLU003

USB-C cable, 1 meter

code MP053

Wall holder for datalogger

code LP100

Holder for mounting the GSM or CO2 Datalogger on magnetic surfaces

code LP103

COMET Database

code CDB

COMET Cloud

code cloud

COMET Cloud Lite for Android & iOS

code cloud_app

COMET VISION - Analytical Software for Dataloggers and Multiloggers

code CV

Database Viewer for Comet Database

code DBV

COMETEO Professional Thermometer Screen for Weather Station Sensor

code F8000

IoT ready Flat Rate SIM Card

code LP105

COMET presentation case for samples

code BM512

COMET Magnetic Foldable Stand

code PPO001

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code cloud

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

Technical data

Measured value

TEMPERATURE SENSOR

HUMIDITY SENSOR

DEW POINT

GSM MODEM PARAMETERS

GENERAL TECHNICAL DATA

Optional accessories and download

Software

Others

Manuals

Catalogs

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