U3121M IoT wireless temperature and relative humidity data logger for external sensor, built-in GSM modem COMET

Description

U3121M IoT wireless temperature and relative humidity data logger for external sensor (probe) with built-in GSM modem.

The wireless data logger allows you to be notified by SMS and JSON messages over the GPRS data link if the set limits are exceeded. The measured values can be sent to the COMET Cloud, a complete monitoring, alarm and analysis system.

It is possible to configure the regular sending of JSON messages to the COMET database, the sending interval is configurable. Alarms are displayed locally by LED, LCD and audibly with built-in beep. You can transfer the data to your computer via the included USB-C cable.

The U3121M IoT includes a calibration traceability certificate with declared metrological traceability of standards based on the requirements of EN ISO/IEC 17025.

Features of the U3121M

Temperature sensor

• measuring range: depending on probe type
• Accuracy: depending on probe type
• resolution: 0.1 °C
• response time t90 (temperature step 20 °C, air flow approx. 1 m/s): 8 min

Humidity sensor

• measuring range: depending on probe type
• Accuracy: depending on probe type
• resolution: 0.1 % RH

Rosišče (dew point)

• measuring range: depending on probe type
• Accuracy: depending on probe type
• resolution: 0.1 °Cdp

GENERAL TECHNICAL DATA

• operating temperature: -20 … +60 °C
• Input: 1x connectable temperature and humidity probe
• memory: 500 000 values in non-cyclical recording mode; 350 000 values in cyclical recording mode
• Recording interval: adjustable from 1 s to 24 hours
• Power: SONY LiIon 5200 mAh battery
• Protection class: IP 67
• dimensions: 61 x 93 x 53 mm, with antenna 120 x 93 x 53 mm
• weight: 260 g
• Warranty: 3 years
• Standard: EN ISO/IEC 17025
• Set includes U3121M, user manual, calibration certificate with traceability, rechargeable battery, power supply, USB-C cable, FREE COMET Vision analytical software, COMET Cloud for 3 months

External probes are not included in the shipment.

Accessories available for purchase:

• A8205 spare Li-Ion battery with cover

The U3121M device is compatible with COMET Database manager and COMET Database viewer software.

For more information, see the datasheet in the Documentation tab.