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Monitoring parameters | CO2 | VOC | Temperature | Relative humidity | ||||
Sensing element | Non-Dispersive Infrared Detector (NDIR) | Semiconductor mix gases sensor | Digital combined temperature and humidity sensor | |||||
Measuring range | 0~2000ppm | 0~30ppm | -20~60°C | 0~100%RH | ||||
Display Resolution | 1ppm | 5ppm | 0.1°C | 0.1%RH | ||||
Accuracy@25°C(77°F) | ±50ppm + 3% of reading | ±10% | ±0.5°C | ±4.5%RH | ||||
Life time | 15 years (normal) | 5~7 years | 10 years | |||||
Stability | <2% | —— | <0.04°C per year | <0.5%RH per year | ||||
Calibration cycle | ABC Logic Self Calibration ( No client separate calibration) | —— | —— | —— | ||||
Response Time | <2 minutes for 90% change | <1 minute (for 10ppm hydrogen, 30ppm ethanol) <5 minute (for a cigarette) in 20m2 room | <10 seconds to reach 63% | |||||
Warm up time | 2 hours (first time) 2 minutes (operation) | |||||||
Electrical Characteristics | ||||||||
Power supply | 24VAC/VDC | |||||||
Consumption | 3.5 W max. 2.5 W avg. | |||||||
Outputs | Up to three analog outputs 0~10VAC or 4~20mA selectable by jumpers | |||||||
RS485 interface (optional) | RS-485 with Modbus protocol, 19200bps rate, 15KV antistatic protection, independent base address. | |||||||
Display and Alarm | ||||||||
LCD Display | Green CO2<1000ppm (optimal air quality) VOC<10ppm (low pollution) Yellow CO2>1000ppm (moderate air quality) VOC>10ppm (medium pollution) Red CO2>1400ppm (poor air quality) VOC>20ppm (heavy pollution) Two switch modes selectable: both CO2 and VOC over the setpoints (default) any one over the setpoint | |||||||
Conditions of Using and Installation | ||||||||
Operation conditions | -10~50°C(14~122°F); 0~95%RH, non condensing | |||||||
Storage conditions | -40~70°C(-40~158°F)/ 5~95%RH | |||||||
Weight | 240g | |||||||
Dimensions | 130mm(L)×85mm(W)×36.5mm(H) | |||||||
Installation | Desktop or wall mount (65mm×65mm or 85mmX85mm or 2”×4” wire box) | |||||||
Housing IP class | PC/ABS, protection class: IP30 | |||||||
Standard | CE-Approval | |||||||
1.Designed for real time measuring ambiance carbon dioxide level, VOC concentration, temperature and relative humidity.
2.NDIR infrared CO2 sensor inside with special Self Calibration. It makes CO2 measurement more accurate and reliable.
3.More than 10 years lifetime of CO2 sensor.
4.High accuracy temperature and relative humidity measurement.
5.Combined both humidity and temperature sensors seamlessly with digital auto compensation
6.Provide up to 3 analog outputs for CO2, VOC and temperature or relative humidity.
7.Basic type without LCD and standard type with LCD selectable
8.3-color backlit LCD provides CO2 and (or) VOC level indication and alarm.
9.Wall mounting type with multi-dimensions for easy installation.
10.Optional Modbus RS485 communication interface.
11.24VAC/VDC power supply.
12. EU standard and CE-approval.
CO2+VOC Transmitter