Description
U4440M – GSM Temperature, Humidity, CO2 & Atmospheric Pressure Data Logger
GSM data logger is designed to record temperature, humidity, atmospheric pressure and CO2. In case of exceeded set limits, SMS and JSON messages can be sent via GPRS data connection. It is 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 a non-volatile electronic memory. The data can be transferred to a PC via USB-C.
Specifications:
CO2 Sensor Measuring range 0 to 5000 ppm
CO2 Sensor Accuracy ±(50ppm +3% from reading) at 25°C and 1013hPa
CO2 Sensor Resolution 1 ppm
Temperature Measuring range -20 to +60 °C
Temperature Accuracy ±0.4 °C
Temperature Resolution 0.1 °C
Humidity Measuring range 0 to 100 % RH
Humidity Accuracy ± 1.8 % RH
Humidity Resolution 0.1% RH
Dew Point Measuring range -90 to +60 °C
Dew Point Accuracy ±1.5 °C at ambient temperature T <25 °C and RH >30 %
Dew Point Resolution 0.1 °C
Operating temperature -20 to +60 °C
Channels internal sensor for temperature, humidity, CO2 and atmospheric pressure
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
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 IP20
Dimensions 61 x 93 x 53 mm, with antenna 120 x 93 x 53 mm
Weight (including batteries) approx. 250 g
Warranty 3 years
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