Air Quality Intsruments

CO2 Transmitter (Duct / Wall / Room / Outside)

Application

Indoor ventilation control
Green houses, poultry
CO2 monitoring at cinema/theatre halls, exhibition halls, restaurants, canteens, shopping malls and
conference rooms etc

Features

Maintenance free NDIR sensor
Estimated operating life 15 years
ABC – Automatic Baseline Calculation
Dip switch settbale response time and ranges
Operating voltage 24V AC/DC

Technical Specifications

Parameter: Carbon Dioxide
Ranges: 400-2.000 ppm, 0-2k ppm, 0-5k ppm, 0-10k ppm (dip switch settable)
Sensor: NDIR sensor
Analog Output: 4-20mA, 0-10Vdc, 0-5Vdc, 2-10Vdc, 1-5Vdc
Supply Voltage: 24VAC / 24VDC
Options: RS485 Modbus, Display, Relay x1, Relay x2, Buzzer
Accuracy: 70ppm +3% of reading
Protection: IP41 for room, wall type and IP65 for duct, outside type
Approval : CE

CO Transmitter (Duct / Wall / Room)

Application

Vehicle exhaust measuring at garages, auto parks
Early fire detection
Air quality applications: measuring CO concentrations as of odors; tobacco smoke, body odor, or material fumes in cinema/theatre halls, exhibition halls, restaurants, canteens, shopping malls and conference rooms etc

Features

Replaceable 20mm Round Type Electrochemical Cell
Estimated operating life 6 years, long term output drift <5% each year
Zero-Span Calibration & Lineer output
Dip switch settbale response time and ranges Operating voltage 24V AC/DC

Technical Specifications

Parameter: Carbon Monoxide
CO ranges, standard: 50ppm, 100ppm, 200ppm and 300ppm, extended: up to 1.000ppm (dip switch settable)
Sensor: Electrochemical Cell
Analog Output: 4-20mA, 0-10Vdc, 0-5Vdc, 2-10Vdc, 1-5Vdc
Supply Voltage: 24VAC / 24VDC
Options: RS485 Modbus, Display, Relay x1, Relay x2, Buzzer
Accuracy: ±3% of FS
Protection: IP41 for room, wall type and IP65 for duct
Approval : CE

VOC Transmitter(Duct / Wall / Room).

Application

Air quality applications: measuring VOC concentrations as of odors; tobacco smoke, body odor,or material fumes in cinema/theatre halls, exhibition halls, restaurants, canteens, shopping malls and conference rooms etc.
Ventilation control
Occupancy level measuring

Features

Maintenance free compact MEMS sensor
VOC (Volatile Organic Compounds): Ethanol, Methane, Carbon Monoxide, Hydrogen, Ammonia
Automatic Baseline Calculation
VOC ranges/sensitivity, Low, Medium and High
Estimated operating life min. 5 years
Dip switch settbale response time and ranges
Operating voltage 24V AC/DC

Technical Specifications

Parameter: VOC
VOC: Low, Medium, High (dip switch settable)
Sensor: MEMS type MOX sensing element
Analog Output: 4-20mA, 0-10Vdc, 0-5Vdc, 2-10Vdc, 1-5Vdc
Supply Voltage: 24VAC / 24VDC
Options: RS485 Modbus, Display, Relay x1, Relay x2, Buzzer
Accuracy: ±10% of FS
Protection: IP41 for room, wall type and IP65 for duct
Approval : CE

Room Type PM1, PM2.5, PM4, PM10 Transmitter

Application

Indoor air quality monitoring
Cleanroom monitoring

Features

Maintenance-free, fully factory calibrated laser optic sensor
PM1.0, PM2.5, PM4.0 and PM10 measurements
Estimated lifetime more than 10 years
Humidity & Temperature options
Dip switch settbale response time and ranges
Operating voltage 24V AC/DC

Technical Specifications

Parameter: PM1, PM2.5, PM4, PM10 (T&RH optional)
Range: 0 … 100 µg/m3 for PM2.5, PM1 & 0 … 500 µg/m3 for PM4, PM10
Sensor: laser optic sensor
Analog Output: 4-20mA, 0-10Vdc, 0-5Vdc, 2-10Vdc, 1-5Vdc
Supply Voltage: 24VAC / 24VDC
Options: RS485 Modbus, Display, Relay x1, Relay x2, Buzzer
Accuracy: 10µg/m3 for PM2.5, PM1 & 25µg/m3 for PM4, PM10
Protection: IP41
Approval : CE

CO2, T&RH Transmitter( Room / Duct)

Application

Indoor ventilation control
Green houses, poultry
CO2 monitoring at cinema/theatre halls, exhibition halls, restaurants, canteens, shopping malls and conference rooms etc

Features

Maintenance free NDIR sensor
Temperature and Humidity options
Estimated operating life 15 years
ABC – Automatic Baseline Calculation
Dip switch settbale response time and ranges
Operating voltage 24V AC/DC

Technical Specifications

Parameter: Carbon Dioxide, Temperature, RH
Ranges: 400-2.000 ppm, 0-2k ppm, 0-5k ppm, 0-10k ppm, 0-50°C, -30-70°C, 0-100%RH (CO2 & Temp. range are dip switch settable)
Sensor: NDIR sensor
Analog Output: 4-20mA, 0-10Vdc, 0-5Vdc, 2-10Vdc, 1-5Vdc
Supply Voltage: 24VAC / 24VDC
Options: RS485 Modbus, Display, Relay x1, Relay x2, Buzzer
Accuracy: 70ppm +3% of reading, ±3%RH, ±0.5°C
Protection: IP41 for room, wall type and IP65 for duct, outside type
Approval : CE

Combined Wall Type IAQ Transmitter - PM2.5, PM10, CO2, Temp., RH, VOC, CH2O, CO

Application

School, library, offices, meeting room, commercial building, shopping center, train/subway station or exhibition hall and etc.

Features

Easy installation and the recommended height of installation is 1~2M above the floor level.
It uses good quality sensors; such as the NDIR CO2 sensor; electro-chemical sensor for HCHO and CO; laser scattering principle sensor for PM2.5 and PM10; CMOS sensor for TVOC, temperature and relative humidity.
NIAQT can be used with a monitoring system, which can activate ventilation system to keep a better indoor
air quality or for energy saving.

Technical Specifications

Parameter: CO2, CO, HCHO, VOC, PM2.5, PM10, Relative Humidity, Temperature
Ranges: CO2: 0-2000ppm, CO: 0-100ppm, HCHO: 0-3ppm, VOC: 0-500 VOC Index Points, PM2.5: 0-600ug/m3, PM10: 0-600ug/m3, Relative Humidity: 0-95%RH, Temperature: -10~50°C
Accuracy: CO2: ±40 ppm +3% of reading, CO: ±5%, HCHO: ±5%, VOC: <±15 VOC Index points, PM2.5: 0-100μg/m3 (±10%μg/m3), 100-600μg/m3 (±10%), PM10: 0-100μg/m3 (±10%μg/m3), 100-600μg/m3 (±10%), Relative Humidity: ±3%RH, Temperature: ±0.5°C
Sensor type: CO2: NDIR, CO: Electrochemical, HCHO: Electrochemical, VOC: CMOS, PM2.5: Laser Scattering, PM10: Laser Scattering, Relative Humidity: CMOS, Temperature: CMOS
Output: RS485 Modbus
Supply Voltage: 24VAC / 24VDC
Protection: IP30
Approval : CE

Oxygen Gas Transmitter

Application

Household application, offices, indoor parking, Library, hospital, shopping mall and etc.

Features

The oxygen level is a very important indication of indoor air quality. It exists generally, in gaseous state at
room temperature. When people stay in some places with low oxygen level, such as office, commercial
building or basement, it might cause hypoxemia. Chronic fatigue is a major sign that people isn’t getting
enough oxygen. Without enough oxygen in the lungs, the organs cannot function properly. As a result, toxins
accumulate in the bloodstream. NOGT Oxygen gas transmitter can monitor oxygen level and send the data to
monitoring center for analysis or for ventilation control. Air quality can be, therefore, efficiently monitored and
managed.

Technical Specifications

Sensor type: Electrochemical
Rrange: 0~30%Vol.
Accuracy: ±5% of F.S. / ±2% of F.S
Power supply: 24VDC
Signal output: 4~20mA
Communication (optional): RS485 Modbus
Protection: IP30 / IP66
Approval: CE

Hydrogen Gas Transmitter

Application

For battery room application

Features

Accurate and stable measurement
Easy to install robust enclosure
4-20mA an RS485 Modbus RTU digital interface
Relay option
LED display

Technical Specifications

Sensor type: Catalytic / Metal oxide semiconductor or Pellistor
Rrange: 0~100%LEL
Accuracy: ±2% of F.S.
Power supply: 24VDC
Signal output: 4~20mA
Communication: RS485 Modbus RTU
Protection: IP66
Approval: CE

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