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Real-Time Alarm


HOBO® Carbon Monoxide Logger

Monitor carbon monoxide (CO) levels in areas such as garages, terminals, loading docks, construction sites, furnace rooms, office buildings and living areas. Convenient battery operation eliminates the need to run wires for AC power, making it easy to deploy the HOBO CO logger at various potential hotspots. Use the resulting data to help identify problems with furnaces, vehicles, water heaters, stoves, fireplaces, ventilation, air supplies, and flues (non-condensing environments only). Optimize resolution and accuracy with three software-selectable ranges: 0 to 125 ppm, 0 to 500 ppm, 0 to 2000 ppm (parts per million).

Important: The HOBO Carbon Monoxide logger is a data recording device only. The data logger does not replace the need for safety/warning alarm that alerts personnel when carbon monoxide exposure reaches dangerous levels.
Features and specifications
  • Capacity: 32,520 measurements total
  • User-selectable sampling intervals: 0.5 seconds to 9 hours, recording times up to 1 year
  • Readout and relaunch with optional HOBO Shuttle or HandCar software running on a Palm® handheld
  • Wall or ceiling mounting kit (hook/loop and screws included)
  • Programmable start time/date
  • Memory modes: stop when full, wrap-around when full
  • Nonvolatile EEPROM memory retains data even if battery fails
  • Blinking LED (blue) confirms operation
  • User-replaceable battery lasts 1 year in normal applications*
  • Battery level indication at launch
  • Expected sensor life: 5 years
  • Operating range: -20°C to +50°C (-4°F to +122°F), 10 to 95% relative humidity, non-condensing, non-fogging
  • Operating pressure range: 1 Atmosphere ± 10%
  • Time accuracy: ±1 minute per week at +20°C (+68°F)
  • Size/Weight: 5.7 x 2.6 x 1.6" (144 x 60 x 40 mm)/ approx. 0.29 lbs. (0.13 kilograms)

* Battery life is shorter when CO levels average 10 ppm or more. For example, battery life is 6 months at average concentrations of 100 ppm.
Measurement Specifications
Nominal Range (ppm) Actual Range (ppm) Resolution
(ppm)		 Accuracy
0 - 125 0.2 - 124.3 0.5 ±1 ppm ±10%
0 - 500 1 - 497.1 2 ±3 ppm ±10%
0 - 2000 4 - 1988 8 ±5 ppm ±10%

The CO sensor is temperature compensated over the entire operating range; however, very rapid temperature changes can contribute as much as an additional 10% error to the above accuracy specifications.

Physical shocks or rapid changes in ambient pressure may show up as spikes in the data.

Response time: 11 minutes typical, depending on installation location and orientation.

Exposure level reference

0-1 ppm Normal background
9 ppm ASHRAE Standard 62-1989 for living areas
50 ppm OSHA enclosed space 8-hour average levels**
100 ppm OSHA exposure limit**
200 ppm Mild headache, nausea, fatigue, and dizziness
800 ppm Convulsions and death within 2-3 hours

** U.S. Department of Labor Occupational Safety & Health Administration (OSHA) regulation 1917.24: The CO content in any enclosed space shall be maintained at not more than 50 ppm (0.005%). Remove all personnel from enclosed space if the CO concentration exceeds 100 ppm (0.01%).
Description
Part No.
Price
HOBO Carbon Monoxide Logger
H11-001
$220
Replacement Vents with filters
HRV-CO
$5
HOBO Shuttle (optional)
H09-003-08
$159
     
Software Starter Kits    
BoxCar Pro 4.3 Starter Kit (Windows)
BCP4.3-ON
$95
BoxCar 3.7 Starter Kit (Windows)
BC3.7-ON
$20

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