Lascar EL-USB-2-LCD luftfugtighed, temperatur og dugpunkt logger

Lascar Electronics
EL-USB-2-LCD
  • Beskrivelse
  • Mere information
  • LCD display shows high/low and last readings
  • Humidity/Temp USB data logger
  • Calculated dew point
  • Free configuration software
  • User-selectable alarm thresholds 

Lascar Humidity, Temperature and Dewpoint Logger with LCD display and USB Interface.

Humidity, temperature and dew point logger plugs straight into a PC's USB port.
Software is included with each logger

This standalone data logger measures and stores up to 16,379 relative humidity and 16,379 temperature readings over 0 to 100%RH and -35 to +80°C (-31 to +176°F) measurement ranges. The user can easily set up the logger and view downloaded data by plugging the module into a PC's USB port and using the supplied software. Relative humidity, temperature and dew point (the temperature at which water vapour present in the air begins to condense) data can then be graphed, printed and exported to other applications.

The high contrast LCD can show a variety of temperature and humidity information. At the touch of a button, the user can cycle between the current temperature and humidity, along with the maximum and minimum stored values for temperature and humidity.
The data logger is supplied complete with a long-life lithium battery, which can typically allow logging for up to 1 year.

Documents available for download:
 EL-USB-2-LCD datasheet (177k)

Specification
Humidity range 0 to 100%RH
Humidity repeatability(short term) ±0.1%RH
Humidity accuracy (overall error) ±3.0%RH*
Humidity Internal resolution 0.5%RH
Humidity long term stability 0.5%RH
Temperature measurement range -35 to 80°C(-31 to 176°F)
Temperature repeatability ±0.1°C(±0.2°F)
Temperature accuracy(overall error) ±0.5°C(±1°F)
Temperature Internal resolution 0.5°C(±1°F)
Dew Point accuracy(overall error)
(25°C, 40-100%RH)
±1.1°C(±2°F)**
Logging rate Once every 10 seconds to once every 12 hours
Logger operating range -35 to 80°C(-31 to 176°F)
Battery 1/2AA 3.6V Lithium Battery, 1 year typical life ***

* This specifies the overall error in the logged readings, for relative humidity measurements between 20 and 80%RH.
** This specifies the overall error in the calculated dew point, for relative humidity measurements between 40 and 100%RH at 25°C
*** Depending on sample rate, ambient temperature and use of alarm LEDs
† At temperatures below -20ºC (-4ºF) the LCD will exhibit slower response times of approximately 10 seconds