COMET Logger U4440 - Temperature, humidity, CO2 and atmospheric pressure data logger with built-in sensors

Model: CO_U4440
Manufactured by: COMET System
Price was:13516 Kč
Special price:12164 Kč incl. VAT
10053 Kč excl. VAT
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U4440 - Temperature, humidity, CO2 and atmospheric pressure data logger with built-in sensors
This model is designed to measure temperature, relative humidity, dew-point temperature, barometric pressure and the concentration of CO2 in the air by internal sensors. Barometric pressure can be measured as absolute or recalculated to sea level. No additional
probes or sensors can be connected. It is characterized by a simple and compact design and a relatively long response in the measured quantities, compare to model with external probes. The sensors are located under the grid on the front and side of the unit The device is suitable for measuring in places where there is no rapid change in temperature or relative humidity, and there is no condensation of water vapours. The device is placed directly in the measured space. Accupack in the device can be charged. As the internal battery creates a parasitic heat during the charging period, the measurement accuracy may be affected by up to 1 º C. In battery mode, this model has significantly shorter battery life than models without CO2 concentration measurement. For this reason, the measurement of CO2 concentration does not occur as often as the measurement of other variables. By default, this is 2 minutes with the option of extending up to 10 minutes (option available in the COMET Vision software). We recommend that calibration of this device in the laboratory be carried out with sufficient air flow (at least 1 m/s), but the reading should be carried out only after a thorough settling, which may take up to 4 hours. Due to low IP20 protection, this device is not suitable for dusty or water-borne areas.
Technical data
  • Measured value Temperature
  • Relative humidity
  • Counted values (dew point…)
  • CO2
  • Atmospheric pressure
  • Measuring range -20 to +60 °C
  • Accuracy ±0.4 °C
  • Resolution 0.1 °C
  • Measuring range 0 to 100 % RH
  • Accuracy ± 1.8 % RH
  • Resolution 0.1% RH
  • Measuring range -90 to +60 °C
  • Accuracy ±1.5 °C at ambient temperature T <25 °C and RH >30 %
  • Resolution 0.1 °C
  • Measuring range 0 to 2000 ppm
  • Accuracy ±(50ppm +2% from reading) at 25°C and 1013hPa
  • Resolution 1 ppm
  • Measuring range 600 to 1100 hPa
  • Accuracy ±1.3 hPa at 23 °C from 800 to 1100 hPa
  • Resolution 0.1 hPa
  • 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
  • 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
  • Weight (including batteries) approx. 250 g
  • Warranty 3 years

Temperature data logger COMET Uxxxx – Catalog Temperature data logger COMET Uxxxx – User‘s Guide

This product was added to our catalog on Monday 14 January, 2019.
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