APPLICATION
- Building HVAC monitoring.
 - Indoor air quality survey.
 - Locate the presence of combustion fumes from vehicles and appliances
 
Internal CO2 alarm buzzer.
| Power Supply | |
| Battery | 4 AA batteries | 
| Battery operation | 24 hours | 
| External power supply | 5V~6V VDC with 0.5A | 
| 
 CO2 Sensor 
 | 
|
| 
  Type 
 | 
  Non-dispersive infra-red (NDIR) 
 | 
| 
  Measurement 
 range 
 | 
  0~9999ppm 
 | 
| 
  Accuracy 
 | 
  ±60ppm or ±5% of reading 
 | 
| 
  Resolution 
 | 
  ±1ppm 
 | 
| 
  Response time 
 | 
  Reaches 90% 
 in approximately 2 minutes 
 | 
| 
 General 
 | 
|
| 
  Operation condition 
 | 
  32°F~122°F (0°C~50°C) 
 | 
| 
  0~95%,RH,non-condensing 
 | 
|
| 
  Storage temperature 
 | 
  -4°F~140°F (-20°C~60°C) 
 | 
| 
 Relative Humidity Sensor 
 | 
|
| 
  Type 
 | 
  CMOS Sensor 
 | 
| 
  Measurement range 
 | 
  1%~99% 
 | 
| 
  Accuracy 
 | 
  ±3.0%RH (20%~80%) at 25°C 
 ±5.0%RH (<20%,>80%) at 25°C 
 | 
| 
  Resolution 
 | 
  0.1% 
 | 
| 
  Response time 
 | 
  8 seconds 
 | 
