IoT Wireless Temperature and Relative Humidity Datalogger for external probe, with built-in 2G 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 GPRS 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

U3121M
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

Quad-band 850/900/1800/1900MHz

Compliant to GSM Phase2/2+

GPRS GPRS mobile station class B

Class 4 2W @ 850/900MHz

Class 1 1W @ 1800/1900MHz

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

Related products

COMET Cloud

code cloud

COMET Database

code CDB

IoT Wireless Temperature Datalogger with built-in sensor and 2G modem

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IoT Wireless Temperature Datalogger for 4 external probes, with built-in 2G modem

code U0141M

IoT Wireless Temperature Datalogger for 2 external probes, with two two-state inputs, built-in 2G modem

code U0843M

IoT Wireless Temperature and Relative Humidity Datalogger, with built-in 2G modem

code U3120M

IoT Wireless Temperature and Relative Humidity Datalogger with connector for other temperature probe, with built-in 2G modem

code U3631M

IoT Wireless Temperature, Relative Humidity, CO2 and atmospheric pressure Datalogger with built-in 2G modem

code U4440M

IoT Wireless Datalogger for 3 current inputs 0-20mA and 1 two-state input, with built-in 2G modem

code U6841M

IoT Wireless Four channel Datalogger with pulse and two-state inputs, with built-in 2G modem

code U7844M

IoT Wireless CO2 datalogger with built-in sensor, 2G modem

code U8410M

Wireless thermometer, hygrometer barometer, Sigfox IoT

code W7810

Reference

COMET measures in Antarctica

Type of application: Industry Healthcare and Laboratory Server rooms and data centers Agriculture Weather monitoring

Installation of IoT Wireless dtaloggers in hematology and biochemistry

Type of application: Healthcare and Laboratory

Monitoring of temperature and humidity in depository rooms

Type of application: Building Management - HVAC Server rooms and data centers Culture

Temperature and Relative Humidity measuring in PHARMACIES and DRUG STORES

Type of application: SOHO (Small Office and Home Office) Industry Healthcare and Laboratory Building Management - HVAC

COMET Dataloggers used for measuring in shipping containers

Type of application: Monitoring during transport Industry Building Management - HVAC

SBIMB - Wits University

Type of application: Industry Healthcare and Laboratory

Monitoring of microclimate conditions in underground systems of mammals

Type of application: Agriculture

With COMET to space

Type of application: Monitoring during transport Healthcare and Laboratory Weather monitoring

Transport of blood products and medical equipment

Type of application: Monitoring during transport Healthcare and Laboratory

Speleoklub Minotaurus

Type of application: Building Management - HVAC Agriculture Culture

Balloon measurements of air pollution

Type of application: Industry Building Management - HVAC

Using og temperature data logger S0110 in speleological practice

Type of application: Building Management - HVAC Agriculture Culture

Meteorological measurements for the purpose of avalanche prevention

Type of application: Building Management - HVAC Agriculture

Humidity monitoring in family houses

Type of application: Building Management - HVAC

PathCare Group

Type of application: Healthcare and Laboratory

Monitoring of temperature and humidity by means of wireless WiFi network

Type of application: Building Management - HVAC Culture

Animal Transportation with Temperature Monitoring

Type of application: Monitoring during transport Healthcare and Laboratory Agriculture

Prague Castle

Type of application: Building Management - HVAC Server rooms and data centers Culture

Temelinska pharmacy - Sumperk

Type of application: Monitoring during transport Healthcare and Laboratory

Masaryk University in Brno

Type of application: Industry Building Management - HVAC Weather monitoring

IoT Wireless Temperature and Relative Humidity Datalogger for external probe, with built-in 2G 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

Related products

Reference

COMET measures in Antarctica

Installation of IoT Wireless dtaloggers in hematology and biochemistry

Monitoring of temperature and humidity in depository rooms

Temperature and Relative Humidity measuring in PHARMACIES and DRUG STORES

COMET Dataloggers used for measuring in shipping containers

SBIMB - Wits University

Monitoring of microclimate conditions in underground systems of mammals

With COMET to space

Transport of blood products and medical equipment

Speleoklub Minotaurus

Balloon measurements of air pollution

Using og temperature data logger S0110 in speleological practice

Meteorological measurements for the purpose of avalanche prevention

Humidity monitoring in family houses

PathCare Group

Monitoring of temperature and humidity by means of wireless WiFi network

Animal Transportation with Temperature Monitoring

Prague Castle

Temelinska pharmacy - Sumperk

Masaryk University in Brno

Monitorinig during transport - video