Handy CO2 Temperature and Humidity Meter / Model Number MD7A-581WAT
Simultaneously check indoor environmental measurements in offices and stores with one device.
- Adopts a highly stable NDIR (non-dispersive infrared) sensor - Capable of measuring STEL (Short-Term Exposure Limit) and TWA (Time-Weighted Average) - Equipped with a CO2 concentration alarm - Can connect to a PC for data download and real-time data recording
basic information
■Specifications CO2 Temperature Humidity Detection Type Non-dispersive Infrared (NDIR) Semiconductor humidity and temperature sensor Measurement Range 0–30,000ppm -20–60℃ 0–100%RH Indication Accuracy (@23±5℃) ±(75ppm+3% of displayed value) (0–5,000ppm) 23±5℃ ±0.8℃ (18–28℃) ±3.0%RH (10–90%RH) ±(150ppm+5% of displayed value) (5,001–30,000ppm) <18℃ ±{[0.08×(18℃−displayed temperature value)] + 0.8℃} ±5.0%RH (<10%, >90%) >28℃ ±{[0.08×(displayed temperature value−28℃)] + 0.8℃} Resolution 1ppm 0.1℃ 0.1%RH Response Time 20 seconds 20 seconds (slow-moving air) 60 seconds (slow-moving air) Sampling Rate 2 seconds - - Humidity Variation Error 32,000 data points Recordable Number 006P type 9V alkaline battery or USB power supply (5V) Power Supply Approximately 10 hours (alkaline battery) Battery Life 0–50℃, 10–90%RH (without condensation) Operating Environment -20–60℃, 10–75%RH
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Applications/Examples of results
- Adopts a stable NDIR (non-dispersive infrared) sensor that has high detection sensitivity while minimizing false positives. - Capable of simultaneously measuring temperature and humidity in addition to CO2 concentration. - Features a large display with excellent visibility and a backlight. - Capable of measuring STEL (Short-Term Exposure Limit) and TWA (Time-Weighted Average). - Equipped with a "user-configurable, two-level" CO2 concentration alarm. - Allows for data download and real-time data recording by connecting to a computer.
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