Descripción
Comet U3121M
- Temperature and relative humidity measured by an external Digi/E series probe
- The dew-point temperature is calculated from the measured temperature and the relative humidity
- High quality, accurate and stable sensors
- Depending on the connected Digi/E series probe
IoT Wireless Temperature and Relative Humidity Datalogger for External Probe, with Built-in GSM Modem
GSM datalogger is designed to record temperature and humidity from an 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 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 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, the probe of the appropriate length and design you can choose in optional accessories. The device includes a Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.
This model measures temperature, relative humidity, and dew point temperature using an outdoor COMET Digi/E series probe. Its response to the temperature or relative humidity jump is significantly faster than by models with internal sensor. This model is often utilized to monitor areas in which only the probe is installed, whereas the main unit is installed elsewhere. When monitoring remote areas, the maximum probe line wire must not exceed 15 m. The Digi/E series probes provide calibrated measurement values. Hence, they may be replaced without having to modify the device setup.
Manufacturer Specs
| 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 |
| 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 | adjustable from 1 s to 24 h |
| Display and alarm refresh | 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 | battery SONY LiIon 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 |
Tech Specs
Dataloggers / Data Acquisition/Dataloggers for Environmental Variables/Temperature Dataloggers Templ |
|
|---|---|
| Max Temperature | 60 C |
| Min Temperature | -20 C (-4 F) |
| # Inputs/Channels | 1 |
| Software Included | Yes |
Test Equipment General Attributes |
|
| Warranty | 3 YEARS |
| IP Rating | IP67 |
| Product Weight | 0.57 LBS |
| Product Width | 0.66 IN |
| Battery Type | Li-ion |
| Country of Origin | Czech Republic |
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