GAOTek Digital Air Quality Hygrometer – High Precision Sensor
GAOTek digital air quality hygrometers are mainly used for environmental carbon dioxide concentration, temperature and humidity monitoring, suitable for homes, classrooms and offices
Description
Overview
GAOTek digital air quality hygrometers are mainly used for environmental carbon dioxide concentration, temperature and humidity monitoring, suitable for homes, classrooms and offices. We use a high-definition black-bottom color screen, and the screen brightness can be set with buttons. The instrument responds quickly, the temperature and humidity measurement interval are 1 second, and the carbon dioxide concentration measurement interval is 4 seconds. We use high-precision sensors to improve the measurement accuracy of carbon dioxide.
Features
- HD black bottom color screen
- NDIR carbon dioxide sensor
- Human comfort index
- Carbon dioxide limit alarm
- Carbon dioxide User Calibration
- Screen brightness is adjustable
- Battery status indication
Technical Specifications
| Protection Class | IP20 |
| Response Time | Temperature 15 minutes
Humidity 15 minutes CO2 concentration: ≥ 3 minutes (in better air circulation) |
| Measuring Interval | Temperature: 1 second
Humidity: 1 second CO2 concentration: 4 seconds |
| LCD Refresh Interval | 1 second |
| Power Supply | Plan A 3 PCS 1.5 V AAA alkaline battery or USB power supply Plan B Lithium direct charge or USB power supply |
| Measure Parameters | Temperature, Relative Humidity, CO2 concentration |
| Power Supply Interface | Type C, DC 5 V or 2 A |
| Case Material | ABS |
| Measuring CO2 | 400 ppm to 10000 ppm |
| Measuring Humidity | 0 % RH to 100 % RH |
| Measurement Accuracy | CO2 concentration ± 3 % ± 40 ppm 400 ppm to 2000 ppm, 32 °F to 122 °F (0 ºC to 50 ºC) Other range presentation values are for reference only |
| Measurement Range | Temperature -4 °F to 140 °F (-20 °C to 60 °C)
Humidity 0 % to 100 % RH CO2 concentration 400 ppm to 10,000 ppm |
| Resolution | Temperature 33.8 °F (1 ºC)
Humidity 1% RH CO2 concentration 1 ppm |
| Operating Temperature | 32 °F to 122 °F (0 °C to 50 °C) |
| Storage Temperature | 86 °F to 140 °F (-30 °C to 60 °C) |
| Size | 3.58 in x 2.99 in x 1.57 in (91 mm x 76 mm x 40 mm) |
| Weight | 4.93 oz (140 g) |
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Documentation (User Manual or Instruction Manual)