Comet U3121M external temperature and humidity recorder with GSM modem
- Transport, storage and production of food and pharmaceuticals
- Food and brewing industry (HACCP)
- Pharmaceutical industry
- Transfusion stations and pharmacies
- Animal husbandry, plant breeding
- HVAC (heating, ventilation, air conditioning and refrigeration)
- Building energy management
- Research and development
- Laboratories (GLP)
- Process plants, warehouses
- Museums, galleries, archives, libraries
- TÜV SÜD certified - complies with EN 12830, Class 1 and EN 13486, Class 1 for food transport
| Measured quantity | Temperature + humidity |
| Power supply | Battery |
| Designation | Wall-mounted |
| Record of measured quantity | Yes |
| Producer | Comet System |
GSM datalogger Comet U3121M is designed for recording from temperature and humidity probes. In case of exceeding the set limits, it allows sending alarm SMS and JSON messages via GPRS data connection. It is possible to set up regular sending of JSON messages to Comet Database, the sending interval is adjustable. Alarms are also indicated locally on the instrument by LED, LCD and acoustically.
Recording is made to a non-volatile electronic memory. Data can be transferred to a personal computer at any time via USB-C interface.
The temperature and humidity probe is not part of the instrument, a probe of suitable length and design can be selected in the optional accessories.
The device includes a calibration sheet with declared metrological relationships of the standards, which is based on the requirements of EN ISO/IEC 17025.
The delivery includes:
- U3121M
- USB-C cable
- Power adapter
- Instructions for use
- Manufacturer's calibration sheet
- Technical support in English on the discussion forum
- COMET Vision analysis software FREE
Datalogger features:
- non-volatile memory for 500,000 values
- manufacturer's calibration sheet included
- permanent connection to a computer, data can be downloaded during recording
- large display with special characters, switchable
- optional display of minimum and maximum temperature readings (zeroing of min/max temperatures from PC or magnet)
- easy mounting with locking option
- low power consumption, battery life up to 7 years, easy battery replacement
- indication of remaining battery life
- thermometer can be switched on/off: on-line from a connected PC, by the supplied magnet
- password protection against unauthorised intervention in the thermometer settings
- Included calibration sheet with declared metrological continuity of standards based on the requirements of EN ISO/IEC 17025.
- Lithium battery included
- communication interface - USB/C, GSM modem
- Measuring probes not included
| TECHNICAL PARAMETERS | |
|---|---|
| Measured quantity | Temperature + Relative humidity + Calculated quantities (dew point, etc.) |
| Measuring range | According to the connected probe |
| Accuracy | According to the connected probe |
| Recording type options | non-cyclic - when the memory is full, the recording stops cyclic - when full, the oldest values are replaced by new ones |
| Power supply | sONY LiIon 5200 mAh battery |
| Real time clock | year, leap year, month, day, hour, minute, second |
| Coverage | IP67 |
| Dimensions with antenna | 120 x 93 x 53mm |
| Weight including batteries | approx. 260g |
- U3121M
- USB-C cable
- Power adapter
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