- Home
- Technical Products
Enterprise Cloud IT Solutions
Test Measurement
Industrial Measurement
- Solutions
Enterprise Cloud IT Solutions
Test Measurement
- Resource Center
- About Us
EN
U4440M Internet of Things Wireless Temperature, Relative Humidity, Carbon Dioxide and Atmospheric Pressure Data Logger with Built-in 2G Modem
U4440M
The GSM Data Logger is designed to record temperature, humidity, atmospheric pressure and carbon dioxide.
If the set limits are exceeded, SMS and JSON messages can be sent via the GPRS data connection. The measured values can be sent to the internet storage COMET Cloud, which is a complete monitoring, alarming and analyzing system.
It can also be set to send JSON messages to the COMET database at adjustable intervals. Alarms can also be displayed locally via LEDs, LCDs and a built-in buzzer.
Recording takes place in a non-volatile electronic memory. Data can be transferred to a computer via the included USB-C cable.
Temperature and humidity probes are not included in the delivery, you can choose the appropriate length and design of the probe from the optional accessories.
The device includes a traceable calibration certificate and declares that the calibrator's metrological traceability is based on the EN ISO/IEC 17025 standard.
Warranty: 3 years
Temperature Sensor
Measurement range: -20 to +60 °C
Measurement accuracy: ±0.4°C
Resolution: 0.1 °C
Humidity Sensor
Measurement range: 0 to 100 % RH
Measurement accuracy: ±1.8%RH
Resolution: 0.1 RH
outdoor spot
Measurement range: -90 to +60 °C
Measurement accuracy: ±1.5 °C for ambient temperature T 30 %.
Resolution: 0.1 °C
CO2 Sensor
Measurement range: 0 to 5000 ppm
Measurement accuracy: ± (50ppm + 3% of reading) at 25°C and 1013hPa
Resolution: 1 ppm
Air Pressure Sensor
Measurement range: 600 to 1100 hPa
Measurement accuracy: ±1.3 hPa in the range of 800 to 1100 hPa at 23 °C.
Resolution: 0.1 hPa
GSM Modem Parameters
Quad-band: 850/900/1800/1900MHz
GSM compliant: Stage 2/2+
GPRS: GPRS Mobile Station Level B
Class 4: 2W @ 850/900MHz
Class 1: 1W @ 1800/1900MHz
General Technical Data
Operating temperature: -20 to +60 °C
Channels: Internal temperature, humidity, CO2 and pressure sensors
Total storage capacity: 500,000 values in non-cyclic recording mode; 350,000 values in cyclic recording mode
Recording interval: adjustable from 1 second to 24 hours
COMET Cloud logging interval: from 5 minutes onwards
Display and alarm update: 1 second, 10 seconds, 1 minute adjustable
Data logging modes: Non-cyclic - stops logging when the memory is full; cyclic - the earliest data is overwritten with new data after the memory is full
Real Time Clock: Year, Year, Month, Day, Hour, Minute, Seconds
Battery: Rechargeable lithium battery A8200, 3.6V/5200mAh
Protection level: IP20
Size: 61 x 93 x 53 mm with antenna 120 x 93 x 53 mm
Weight (including battery): approx. 260 g
Warranty: 3 years
U4440M
Operator's Manual
Traceable calibration certificate
Rechargeable Battery
Power supply
USB-C cable
Free analysis software COMET Vision
SIM card not included in delivery
