The World's Smallest and Most Innovative CO Detector/Alarm
The Pocket CO 300 is designed to be a simple and effective way to determine, measure, and even record Carbon Monoxide (CO) levels in any environment. As a stand-alone unit in a compact size, the Pocket CO 300 can be carried on a key ring, clipped to your clothing or attached to an instrument panel. It's been specifically designed to be affordable and fit the needs of vehicle operators, health professionals, and concerned homeowners alike. You won't find a more portable, economic solution that still provides you with effective carbon monoxide detection and alerting anywhere else!
Simple, Quick Activation and Operation
The Pocket CO 300 offers to modes of Operation. "12hr" and "Continuous" monitoring allow you to determine how long the unit samples the ambient air to alert you of CO dangers. Here is how these modes differ:
| Mode of Operation | Display Shows | Sample Interval | Time Period |
| 12 Hour (One Push of Button) | "12HR" | Every 5 seconds | 12 hours then auto off |
| Continuous (Two Pushes of Button) | "ON" | Every 5 seconds | Indefinite until turned off by user or battery expiration |
| Alarm Levels | Alarm Interval | 50 - 124 PPM | alerts every 20 seconds |
| 125 - 399 PPM | alerts every 10 seconds |
| 400+ PPM | alerts every 5 seconds |
The Pocket CO 300 versus the CO Experts 2010
Display Readings Indicate:
- Total exposure (ppm-hrs)
- Time weighted average TWA (ppm)
- Max Concentration (ppm)
- Time of occurrence of max concentration (hrs/min from start) length of collection
Specifications
Size: |
2.4 x.1.4 x.0.6 inches |
Weight: |
Less than 1 ounce, 20 grams |
Range: |
0-500 ppm CO |
Accuracy: |
+/- 10% of reading at standard conditions |
Response time: |
<90 seconds to 90% |
Warm-up time: |
2 seconds |
Operating life: |
1-year minimum |
Operating temperature: |
32-105 F, 0-40 C displayed; readings automatically compensated |
Pressure effect: |
Reading decreases with decreasing pressure, down to 70% at 10,000 ft. |
Humidity limits: |
15-85% RH, non-condensing |
Alarms |
CO above the 25 ppm OSHA TWA and >125ppm |
Sampling mode: |
Gaseous diffusion |
Interferences: |
None significant, except hydrogen |
Self-Check: |
Battery, alarm, display, temperature, tamper |
Service life: |
Two year (warranted). Can be extended by replacement of battery and sensor. Pocket CO is warranted to operate on average 8 hours per day and 5 days per week for one year with no replacement of sensor or battery. Pocket CO will last longer with reduced usage. For example if you use it twice a week for a few hours in flight it may last 2 -3 years. |
Maintenance: |
For most applications, 90% accuracy is acceptable and no maintenance is required. On startup, if the self check fails or low battery appears on the display, factory maintenance is required |
Low levels of CO, typically less than 10 ppm, are not considered especially hazardous, but they do indicate a source of CO. Sustained levels above 25 ppm for 1.5 hours, and exposure to more than 70 ppm CO should be avoided. Seek clean air, ventilation, or any other means to eliminate exposure.
Ordinary UL-approved residential CO detectors -- the kind you find at Wal-Mart or Home Depot -- simply won't do for such critical applications. And those chemical spot detectors sold for auto and aircraft use are basically useless. Here's why.
To be UL-approved for residential use in the United States, CO detectors are not permitted to be very sensitive. UL requires that they must not display CO levels less than 30 parts per million (PPM). Furthermore, they must not alarm unless exposed to 70 PPM for four hours, 150 PPM for 35 minutes, or 400 PPM for 15 minutes! These requirements were imposed by UL at the request of gas utilities and firefighters to minimize the number of unnecessary emergency 911 call-outs from homeowners. (Yet most fire departments require that firefighters put on their oxygen masks if CO levels are 35 PPM or higher ... go figure!)
For use in aircraft, boats, RVs and other critical environments, however, we believe that a far more sensitive detector is essential -- one capable of displaying and alarming at far lower concentrations of CO. After all, you're not simply concerned about protecting the health of the occupants, but also about preventing cognitive impairment of the pilot or driver. In addition, low levels of CO can be extremely hazardous in aircraft because the effects of CO and of altitude (hypoxia) are cumulative.
How much CO is too much?It depends on whom you ask:
We consider CO concentrations of 10 PPM or more in an airplane cockpit to be significant, and concentrations of 35 PPM or more to be grounds for declaring an emergency, going on supplemental oxygen (if available), and making an immediate precautionary landing. By the way, those el-cheapo chemical spot detectors sold for aviation and motor vehicle use are basically worthless -- they require prolonged exposure to 100 PPM or more before they darken to provide a warning, and by the time that occurs, you might well feel too ill to notice. The UL-2034-compliant residential CO detectors you'll find at Wal-Mart and Home Depot are a little better, but not much. |
