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Testermeter-CO2 Monitor with Wi-Fi RJ45 and Data Logger EM21-CO2
overview
EM21 is monitoring real-time carbon dioxide (CO2) and 24-hour average CO2 with LCD display. It features automatic screen brightness adjustment for day and night, and also a 3-color LED light indicates 3 CO2 ranges. |
FEATURES
1.Wall embedded installation or Wall surface installation
2.LCD display or No LCD display
3.Automatic screen brightness adjustment
4.3-color LED lights indicating three CO2 range
5.18~36Vdc/20~28Vac power supply or 100~240Vac power supply
6.Real time CO2 monitoring and 24 hours average CO2
7.Optional PM2.5 simultaneous monitoring or TVOC monitoring
8.RS485 interface or Optional WiFi interface
TECHNICAL SPECIFICATIONS
General Data
Detection Parameters(max.) | CO2, Temp.& RH (optional PM2.5 or TVOC) |
Output (Optional) | RS485 (Modbus RTU) WIFI @2.4 GHz 802.11b/g/n |
Operating Environment | Temp:0~60℃ Humidity︰0~99%RH |
Storage Conditions | 0℃~50℃, 0~70%RH |
Power Supply | 24VAC/VDC±20%,100~240VAC |
Overall Dimension | 91.00mm*111.00mm*51.00mm |
Power consumption | Average 1.9w (24V) 4.5w( 230V) |
Installation(embedded) | Standard 86/50 pipe box (installation hole distance 60mm) American standard pipe box (installation hole distance 84mm) |
PM2.5 Data
Sensor | Laser particle sensor, light scattering method |
Measuring Range | 0~500μg ∕m3 |
Output Resolution | 1μg∕ m3 |
Accuracy (PM2.5) | <15% |
CO2 Data
Sensor | Non-Dispersive Infrared Detector (NDIR) |
Measuring Range | 400~5,000ppm |
Output Resolution | 1ppm |
Accuracy | ±50ppm + 3% of reading or 75ppm |
Temperature and Humidity Data
Sensor | High precision digital integrated temperature and humidity sensor |
Measuring Range | Temp: 0℃~60℃ Humidity:0~99%RH |
Output Resolution | Temp:0.01℃ Humidity:0.01%RH |
Accuracy | Temp:±0.8℃ Humidity:±4.5%RH |
TVOC Data
Sensor | Metal oxide gas sensor |
Measuring Range | 0.001~4.0mg/m |
Output Resolution | 0.001mg∕m3 |
Accuracy | <15% |