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Amprobe CO2-100 Handheld Carbon Dioxide Meter

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Amprobe CO2-100 Handheld Carbon Dioxide Meter
Amprobe CO2-100 Handheld Carbon Dioxide Meter
Amprobe CO2-100 Handheld Carbon Dioxide Meter
Amprobe CO2-100 Handheld Carbon Dioxide Meter

Instant feedback with CO2 levels, with additional temperature and humidity measurement. Built in alarm warns against dangerous CO2 levels. The portable CO2-100 Air Quality meter is designed to measure air quality compliance in occupied spaces such as offices, production floors, schools or hospitals.

Amprobe CO2-100 Handheld Carbon Dioxide Meter is rated 4.0 out of 5 by 14.
Rated 1 out of 5 by from Poor programming The meter "kind of" worked, but could never be properly calibrated without an error message, or running on CAL mode for hours. It seemed to have some programming errors, buttons were often unresponsive, and sometimes locked up. After 3 years, I put in fresh batteries and attempted to calibrate it again; it doesn't seem to work at all any more.
Date published: 2018-09-18
Rated 3 out of 5 by from Reliable and Bulky The CO2-100 meter is a decent and reliable product. The meter does what it was made to do, provide CO2 readings. It also provides dry bulb temperature and relative humidity readings with wet-bulb and dew point temperatures also of which I really like. The three drawbacks are that the meter is very bulky even for a handheld device. It does not have an off button. And the prescribed on time for the meter is not adjustable. It's still a good meter that I have used a lot.
Date published: 2018-08-24
Rated 5 out of 5 by from Good Product I like this meter and the multiple readings on the same screen. This multiple readings on the same screen make it easy to take multiple readings at the same time without having to switch between screens.
Date published: 2017-09-19
Rated 2 out of 5 by from Not calibrated from factory The unit was recieved and was off calibration by 541ppm compared to other units on site. It has not been used in the plant as of this time. Calibratio on this unit does not work as explained in the manual. the unit cannot be turned off during calibration and it only calibrate the humidity. SN - 1702038
Date published: 2017-07-07
Rated 5 out of 5 by from Great for high school classroom labs! I use the Amprobe CO2-100 in my high school science class. We do a lot of inquiry based labs where students take data inside and outside. One project is taking data in different areas--one natural area with real plants, grass, etc, one area that the school has put in fake grass, plants, etc. The students enjoy working with the meter and have even borrowed them to take CO2 readings in classrooms where they feel particularly tired, especially when the door is closed.
Date published: 2017-05-24
Rated 3 out of 5 by from Amprobe CO2-100: Common problems as other reviewers Meter is easy to use and seems to be accurate when calibrated to ambient conditions; however, I have 3 issues with it and /or Amprobe... Issue #1: Power button will not turn off the meter. (I was told this is a non-issue since the meter turns off on it's own and is not a manufacturing defect.) Issue #2: Instructions on calibrating the CO2 to ambient conditions is incorrect in the Users Manual. The "cal" button and the arrow button opposite of what is shown in the manual must be used to put the meter in CO2 calibration mode. Issue #3: A customer service representative told me the meter was going to be discontinued in March and that any warranty claims would be resolved with a "new" meter as long as they were in stock. I was told that once the current inventory is gone, they will no longer support the meter. With these caveats, I do still recommend this meter because it is very inexpensive as far as CO2 meters are concerned and, for the company I work for, it is considered a "disposable" asset.
Date published: 2017-04-25
Rated 5 out of 5 by from Easy to use and very accurate. Best bang for our buck. Easy to read numbers display with a back up light/illumination. It performed well and is a great addition for any air quality assessment tool kits. We are a consulting company and we are satisfied with this product. In a matter of minutes I was able to calibrate and set alarm parameters easily.
Date published: 2016-01-07
Rated 4 out of 5 by from Good features and seemingly durable Product is relatively easy to setup and use. I have not tried to calibrate as I expect it's factory calibration is still solid after only using for a couple of days. Do wish it didn't take 30 seconds to be ready to use and I have yet to be able to get the unit to power off manually. However, its is great to have not only temp and humidity but Dew point and Wet bulb as well. That is handy. Being able to get an average of all those readings is a definite plus. Good Product all around so far.
Date published: 2015-05-31
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  • Low drift portable meter for checking indoor air quality
  • CO2 measurement up to 9999 ppm
  • Triple display with simultaneous CO2, temperature and relative humidity readings
  • Selectable display of dew point and wet bulb
  • Air quality analysis with displays of:
  • TWA display (time-weighted average) for 8 hrs period
  • 15 minutes STEL (short-term exposure limit) value
  • High performance low drift sensor designed with NDIR (non-dispersive infrared) waveguide technology
  • Easy to read large LCD display
  • Manually calibratable
  • Audible alarm threshold setting to setup warning against carbon dioxide level
  • Backlight function for working in dark area
  • Optional PC download capabilities
  • Data hold
  • Maximum, minimum, average functions
  • Long time drift compensation for accurate readings
  • Meter, manual, batteries and hard carrying case
Feature CO2-100 CO2-200
C02 0 → 9999 ppm 0 → 9999 ppm
Temperature range 14 °F → 140°F (-10 °C → 60 °C ) 14 °F → 140 °F (-10 °C → 60 °C)
RH range 0 % → 95 % 0 % → 95 %
DP (dew point temperature) -4 °F → 139.8 °F (-20 °C → 59.9 °C) -4 °F → 139.8 °F (-20 °C → 59.9 °C)
WB (wet bulb temperature) 24.8 °F → 139.8 °F (-5.0 °C → 59.9 °C) 23 °F → 139.8 °F (-5.0 °C → 59.9 °C)
Resolution 1 ppm - CO2 concentration, 0.1 °C / °F - Temp, 0.1 %RH - humidity 1 ppm - CO2 concentration, 0.1 °C / °F - Temp, 0.1 %RH - humidity

Measuring range: CO2 0 ~ 9999 ppm
5001 ~ 9999 ppm (out of scale range)
Temperature range: -10°C to 60°C (14°F to 140°F)
RH Range: 0% ~ 95%
DP (Dew point temperature): -20°C to 59.9°C (-4°F to 139.8°F)
WB (Wet bulb temperature): -5.0°C to 59.9°C (24.8°F to 139.8°F)
Resolution: 1ppm - CO2 concentration, 0.1°C / °F - Temp, 0.1% RH - humidity
Accuracy: ±30ppm±5% of reading(CO2) (0~5000ppm) others rang accuracy are not specified ; ±0.6°C / ±0.9°F,
±3% RH (at25°C ,10~90%) others ±5% for other RH range
Sensing tech: CO2 -NDIR sensor
Humidity: Rotronic capacitor type
Power supply: AA type (UM-3) x 4 pcs

For complete specs please download the product datasheet under the “Resources" tab.
Model NameDescriptionBuy it
  • Low drift portable meter for checking indoor air quality
  • CO2 Measurement up to 9999 ppm
  • Triple display with simultaneous CO2, Temperature and relative humidity readings
Included Accessories:   Batteries (installed), users manual, carrying case
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