COMET U0110M – IoT Wireless Data Logger with 2G Modem and Internal Temperature Sensor

COMET U0110M – IoT Wireless Datalogger with 2G Modem, Internal Temperature Sensor (-20 to +60 °C ±0.4 °C), 500,000 Data Points Memory, SMS/JSON Alarm 

The COMET U0110M is a compact and reliable IoT wireless datalogger with an integrated 2G modem (Quad-Band GSM/GPRS) – an independent and self-sufficient solution for remote monitoring and long-term recording of temperature using its internal sensor. Whether for cold chain, warehouses, climate chambers, cold rooms, transport, server rooms, archives, offices, greenhouses, or remote sites – the U0110M immediately sends SMS and JSON alarms via GPRS when threshold limits are exceeded. Regular JSON data transmission to COMET Database or COMET Cloud (a complete monitoring, alarm, and analysis tool) can be configured. On-site alarms are indicated via LED, LCD, and buzzer. With a memory capacity of 500,000 readings (non-cyclic) or 350,000 readings (cyclic) and a traceable calibration certificate (EN ISO/IEC 17025), it’s ideal for quality management, audits, and temperature documentation.

The internal temperature sensor measures from -20 to +60 °C (±0.4 °C) with a resolution of 0.1 °C. The response time t90 is 15 minutes (for a 20 °C temperature step and 1 m/s airflow). The acoustic and optical alarm provides an immediate warning when adjustable limits are exceeded. Min/Max values are stored. The backlit LCD display is easy to read, with adjustable measurement and display update rates (1 s, 10 s, 1 min). The logger operates fully autonomously on its internal battery — no external power supply is needed. Data download to a PC via USB-C is supported. COMET Cloud: 3 months free, then 1 credit per year. The Quad-Band GSM modem (850/900/1800/1900 MHz) ensures worldwide coverage and stable data transmission.

The datalogger is maintenance-free, long-term stable, and comes with a 3-year warranty. The included traceable calibration certificate guarantees highest measurement accuracy from the factory. Intuitive configuration via LCD or COMET Cloud. Whether used as a mobile remote logger in transport vehicles, as a stationary monitor in rooms, or as a central device in facility management – the U0110M stands out for its precision, autonomy, 2G connectivity, and ease of use. No external sensor required – ready for immediate indoor measurement.

Why COMET U0110M is the best IoT 2G datalogger for temperature:

• Integrated 2G modem (Quad-Band GSM/GPRS) – SMS/JSON alarm & data transfer without WLAN/LAN
• Internal temperature sensor – ready to use without probe
• 500,000 data points memory – non-cyclic or cyclic
• COMET Cloud – complete monitoring, alarm & analysis (3 months free)
• Acoustic/optical alarm + LED – instant local alert
• Wide measuring range – -20 to +60 °C (±0.4 °C)
• Backlit LCD – temperature and status clearly visible
• Traceable calibration certificate included – EN ISO/IEC 17025
• Battery-powered autonomous operation – no external power needed
• 3-year warranty – guaranteed COMET quality

Technical data U0110M:

• Temperature internal: -20 to +60 °C (±0.4 °C)
• Resolution: 0.1 °C
• Response time t90: 15 min (at 20 °C step and 1 m/s airflow)
• Channels: 1× internal temperature sensor
• Alarm: acoustic + optical + SMS/JSON via GPRS
• Memory: 500,000 data points (non-cyclic) / 350,000 data points (cyclic)
• Logging interval internal: 1 s to 24 h
• Logging interval COMET Cloud: from 5 minutes
• Measurement/alarm interval: adjustable 1 s, 10 s, 1 min
• Display: backlit LCD
• Communication: 2G modem (Quad-Band 850/900/1800/1900 MHz, GPRS Class B) + USB-C
• Power supply: internal battery (operating time depending on configuration – several months/years)
• Operating temperature: -20 to +60 °C
• Protection class: IP20 (device)
• Warranty: 3 years

Perfect for:

• Cold chain & transport monitoring (remote temperature)
• Warehouse and cold room monitoring
• Server rooms and data centers
• Offices, schools & hospitals (remote indoor temperature)
• Pharmaceutical and food production
• Greenhouses & agriculture
• Remote monitoring without local internet access
• Quality management & audits

Installation and operation – done in minutes

Activate the battery, insert a SIM card (if desired) – that’s it! Set intervals, thresholds, and Cloud/SMS settings, start logging – read data via COMET Cloud or USB-C. The backlit display and acoustic/optical alarm ensure safe and user-friendly operation. Calibration certificate included – ideal for audits and quality management.

Summary:

• The GSM datalogger is designed for temperature recording
• When preset limits are exceeded, SMS and JSON notifications can be sent via a GPRS data connection
• The measured values can be transmitted to the COMET Cloud, a comprehensive monitoring, alarm, and analysis system
• Additionally, regular sending of JSON messages to the COMET Database can be configured; the sending interval is adjustable
• Alarms are indicated locally by LED, LCD, and an acoustic signal from an integrated buzzer
• Data are stored in non-volatile electronic memory
• Data can be transferred to a PC using the supplied USB-C cable
• The GSM recorder includes a traceable calibration certificate with declared metrological traceability according to EN ISO/IEC 17025
• When purchasing a new IoT wireless datalogger with integrated modem, you receive 3 months of COMET Cloud access free of charge; for full-year use, one credit is required thereafter.

Scope of delivery:

• U0110M
• User manual
• Traceable calibration certificate
• Rechargeable battery
• Power adapter
• USB-C cable
• FREE FULL VERSION of COMET Vision analysis software
• COMET Cloud for 3 months
• SIM CARD NOT INCLUDED