U0110M/U3120M - GSM temperature and humidity data logger with built-in sensors and modem

GSM datalogger is designed to record temperature and humidity humidity. In case of exceeded set limits, SMS and JSON messages can be sent via GPRS data connection. It is possible to set the regular sending of JSON messages to Comet Database, the sending interval is adjustable.

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CUSTOMER SERVICE: +39.02.6659.5982

SKU Model Description Price Quantity
31744 U0110M

GSM Temperature datalogger with built-in sensors and modem

412 EUR
31745 U3210M

GSM Temperature and Humidity datalogger with built-in sensors and modem

480 EUR


The recording is performed in a non-volatile electronic memory. The data can be transferred to a PC via USB-C.

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

Included in delivery:

  • U3120M
  • USB-C cable
  • Power supply
  • Manual
  • Traceable calibration certificate
  • Technical support at discussion forum
  • FREE analytical software COMET Vision

You can DOWNLOAD the software here:



Measured value:  Temperature, or temperature and relative humidity
Temperature measuring range: -20 to +60 ° C
Accuracy of temperature measurement: ± 0,4 ° C
Resolution: 0,1 ° C
Response time t90 of temperature measurement (temperature step 20°C, air flow approximately 1m/s): 8 or 15 min
Relative humidity measuring range:  0 to 100%
Accuracy of relative humidity measurement: ± 1,8% **
Response time t90 of relative humidity measurement (humidity step 30%RH, constant temperature): 50 s
Real time clock:  Year, leap year, month, day, hour, minute, second
Data logging interval: Adjustable from 1s to 24h
Display and alarm refresh: Adjustable 1 s, 10s, 1min
Total memory capacity: 500 000 values in noncyclic logging mode, 350 000 values in cyclic record mode
Data logging mode: Noncyclic - data logging stops after filling the memory, cyclic - after filling memory oldest data is overwritten by new
Power: SONY Li-Ion 5200mAh
IP Protection: IP67 - IP67 - protected against influence of temporary immersion into water
Dimension: 61x93x53, with antenna 120x93x53
Weight including battery: 260 g
Warranty: 3 years


Features description:

* the features may vary depending on the device type

● accurate measurement of temperature, humidity, dew point, events,

● nonvolatile memory for 500 000 records
● indication of alarm via SMS, JSON, acoustic, 3-colours LEDs
● easy to use software for data analysis on PC
● communication interfaces - USB-C snd GSM modem
● rugged design
● long battery life up to 6 years
● logger deployment down to -40°C



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