Lascar EL-USB-CO

  • 0-1000 ppm Carbon Monoxide Measurement Range
  • User programmable sample rate and alarm limits
  • Audible alarm
  • 32,000 Point storage capacity
  • USB interface for set-up and download via PC (not Mac compatible)
  • Configuration and graphing software included
  • Replaceable battery



The Lascar EL-USB-CO USB Carbon Monoxide Data Logger is a standalone data logger that measures and stores up to 32,510 Carbon Monoxide (CO) readings over a 0 to 1000ppm measurement range and -10 to +40°C (14 to +104°F) operating temperature range. The user can easily set up the logging rate and start time, and download the stored stat by plugging the data logger into a PC’s USB port and running the purpose designed software under Windows 2000, XP, Vista & 7. The data can then be graphed, printed and exported to other applications. The data logger is supplied complete with a long-life lithium battery. Correct functioning of the unit is indicated by flashing red and green LEDs. A bright red LED will flash and a buzzer can sound when a preset warning level has been exceeded.

The EL-USB-CO is suitable for a wide variety of applications. These include:

  • Environmental
  • Air Quality


Specifications Minimum Typical Maximum Unit
Measurement Range 3 1000* ppcm CO
Internal resolution 0.5 ppcm CO
Accuracy (overall error) ±2 ppm ±6%
Repeatability ±3 %
Long Term Drift 5 % / year
Zero Offset ±2 ppm CO
Response time (to reach 90%) 1 Minute
Logging rate every 10 s every 5 min
Operating temperature range (15-90 %RH, non-condensing) -10(+14) +40(+104) °C(°F)
Operating pressure range 900 100 mBar
1/2AA 3.6V Lithium Battery Life 3** Month
Dimensions 125 x 26.4 x 26.4mm (4.92 x 1.03 x 1.03”)

* do not expose to levels above 1000ppm (ie directly measureing the exhaust of a car or wood burner)
** with battery supplied, 5 minute logging rate, 25°C ambient temperature, audible warning disabled, reading less than 10ppm CO


The core of Lascar’s data logging solution is the free software supplied with each data logger. Using a wizard format to guide the user through setup of the data logger and subsequent download of collected data, the software puts the ‘easy’ into EasyLog. Compatible with 32-bit and 64-bit versions of Windows 7, 8 and 10. (not compatible with Mac or Linux).