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High-Quality Digital Temperature Humidity Monitor - 9999ppm Review

3

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Very good

Revainrating 4.5 out of 5  
Rating 
4.7
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Description of High-Quality Digital Temperature Humidity Monitor - 9999ppm

Triple displays of CO2 level, Temperature (°F/ °C) and Humidity (Air, Wet Bulb, or Dew Point Info are all available). Stable NDIR Sensor for CO2 Detection. Ideal indoor air quality meter for home, laboratories, hotels, etc. Sound Warning Alarm notifies operator when CO2 levels reach or exceed a preset threshold. Power Supplied by Battery (Included) or 9V Adaptor . Optional Software CD for PC Connection Online Logging is also possible. Measuring Range:CO2: 0~9999ppm,(2001~9999 out of scale), Resolution : 1ppm,0.1°C/°F, 0.1%RH.

Reviews

Global ratings 3
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    2
  • 4
    1
  • 3
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Type of review

Revainrating 5 out of 5

I will let you know more after using it.

As I just received it I can't tell you too much about it. Aside from just seeming to work, the instructions seem well written and I'm looking forward to using it. I just need to figure out what normal indoor CO2 levels should be since my house is 933 and we open the windows every day. I'll let you know. I was surprised that all the stores I've been to have a lot less than 700. The highest was 600. The goal was the best and the lowest.

Pros
  • An audible alarm notifies the operator when the CO2 level reaches or exceeds a preset threshold.
Cons
  • No job

Revainrating 4 out of 5

Test student during Covid-19

I to determine the CO2 values in the classroom/test room during psychoeducational assessments. This meter quickly displays CO2 levels after the 30-second warm-up period is complete. One star off because this model, the 7755, doesn't display the air temperature in Fahrenheit, only in Celsius. The included manual is unclear on this as it was written for more than one model. The manual says in pictures, not written, that the model gives 7752 Fahrenheit, not humidity.

Pros
  • Measurement range: CO2: 0~9999ppm (2001~9999 off scale), resolution: 1ppm, 0.1°C/°F, 0.1%RH
Cons
  • Can't remember but what – It was bought

Revainrating 5 out of 5

Unusual late 1980's design but it works

A must-have tool during a pandemic to ensure proper room ventilation. I'm glad I bought this; My tightly sealed house had 1600ppm of CO2 and this meter clearly shows when the windows have been open long enough to bring CO2 levels down to a more healthy 600-800ppm. Buy this if you want to look like a contractor. It's huge and yellow, but actually light, especially for its size. The C02 value appears 30 seconds after the countdown; The initial indoor relative humidity after the unit is placed…

Pros
  • Robust NDIR sensor for CO2 detection. Ideal indoor air quality meter for home, laboratory, hotel, etc.
Cons
  • Newer model could have been chosen