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G02-VOC-B3 Series Room Indoor Air Quality (IAQ) Monitor / Alarm

Post Date:

2018/11/07 17:29:34

Expired Date:

2019/02/05 23:59:59

Trade Leads Category:

Alarms & Sensors/n.e.s.

Company Info

Shenzhen Week Technology Ltd.
Contact Person: Yan Zhang
Address: 16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1St Rd, Hi-Tech Park, Nanshan
State/Province: GUANGDONG
Country/Region: China (mainland)
Zip/Post Code: 518067


Room IAQ Monitor / Alarm
Model#: G02-VOC-B3 Series
Indoor Air Quality + Temperature + Humidity Detection
Three-color LCD backlit, Desktop or Wall Mounting


  • Real time indoor air quality detection and alarm
  • High sensitivity to VOC and other indoor contaminative gases
  • Temperature and humidity detection and display
  • Three-color backlit LCD and buzzer alarm
  • Provide 1 xon/off output to control a ventilator
  • Modbus RS485 interface optional
  • Excellent performance


G02-VOC-B3 Series Room Indoor Air Quality Monitor Description
G02-VOC monitor is specially designed to detect indoor air quality in offices and home environments. Its internal mix gases sensor has high sensitivity not only to VOC's such as toluene and formaldehyde from wood finishing and construction products but also to other air contaminants which are emitted by cigarette smoke, ammonia, hydrogen sulfide etc. It’s also sensitive to carbon monoxide, alcohol, disinfectant and other bad smells. So it is more suitable for monitoring IAQ than any other sensor that for a single kind of gas.

G02-VOC-B3 Series Room Indoor Air Quality Monitor Features
• Real time monitor ambiance air quality
• Semiconductor mix gases sensor with 5 year life
• Gas detection: cigarette smoke, VOCs such as formaldehyde and toluene, ethanol, ammonia, hydrogen sulfide, sulfur dioxide and other harmful gases
• Monitor temperature and relative humidity
• Three-color  (green/orange/red)  LCD  backlit indicating air quality at optimal/moderate/poor
• Preset warning point of buzzer alarm and backlight
• Provide one relay output to control a ventilator
• Modbus RS485 communication optional
• High quality technics and elegant appearance, best choice for home and office
• 220VAC or 24VAC/VDC power selectable; power adaptor available; desktop and wall mounting type available
• EU standard and CE-approval


G02-VOC-B3 Series Room Indoor Air Quality Monitor Application
• Ambiance air quality detection and alarm
• Ventilation systems
• Air cleaning systems.
• Installation place such as bedroom, sitting room, study and dinner room, kindergarten, classroom, office, car, restaurant, and other public places.

G02-VOC-B3 Series Room Indoor Air Quality Monitor Specifications

Gas detection Highly sensitive to many harmful gases, such as harmful gases from construction
and decoration materials, VOCs (like toluene and formaldehyde); Cigarette smoke;
Ammonia and H2S and other gases from household wastes; CO, SO2 from cooking
and burning; Alcohol, Natural gas, detergent and other bad smells etc.
Sensing element Semiconductor mix gas sensor of long working life and good stability
Signal update 1s
Warm up time 72 hours (first time), 1 hour (normal operation)
VOC measuring range 1~30ppm ( 1ppm= 1 part per million)
Display resolution 0.1ppm
VOC setting resolution 0.1ppm
Temperature & Humidity Sensor Temperature Relative Humidity
Sensing element NTC 5K Capacitive sensor
Measuring range 0~50°C 0 -95%RH
Accuracy ±0.5°C (25°C, 40 -60%RH) ±4%RH (25°C, 40%-60%RH)
Display resolution 0.5°C 1%RH
Stability ±0.5°C per year  ±1%RH per year
Output 1xRelay output to control a ventilator or air-purifier, max current 3A resistance (220VAC)
Warning alarm Inner buzzer alarm and also three colors backlit switch as well
Buzzer alarm Alarm starts when VOC value above 25ppm
LCD backlit Green—optimal air quality        ► enjoy the air quality
Orange—moderate air quality  ► ventilation suggested
Red—poor air quality                ► ventilation immediately
RS485 interface (option) Modbus protocol with 19200bps
Operation condition -20°C~60°C (-4°F~140°F) / 0 ~ 95%RH
Storage conditions 0°C ~50°C (32°F~122°F) / 5 ~ 90%RH
Net Weight 190g
Dimensions 130mm(L) x 85mm(W) x 36.5mm(H)
Installation standard Desktop or wall mount (65mm x 65mm or 85mm x 85mm or 2" x 4" wire box)
Wiring standard Wire section area <1.5mm2
Power supply 24VAC/VDC, 230VAC
Consumption 2.8 W
Quality System ISO 9001
Housing PC/ABS fire-proof, IP30 protection
Certificate CE


G02-VOC-B3 Series Room Indoor Air Quality Monitor Models

Model Name Description Power Type
G02-VOC-B320A IAQ, temperature and
humidity monitor/alarm
Three-color backlit LCD, buzzer
230VAC Wall mounting
G02-VOC-B332C IAQ, temperature and
humidity monitor/alarm
Three-color backlit LCD, buzzer
24VAC/VDC, with DC
socket and a power
with a bracket
G02-VOC-B340A IAQ, temperature and
humidity monitor/controller
Three-color backlit LCD, buzzer 
alarm; 1 on/off output; touch-key 
for operation
230VAC Wall mounting
G02-VOC-B310C IAQ, temperature and
humidity monitor/alarm
Three-color backlit LCD, buzzer
alarm. Modbus RS485 interface
24VAC/VDC Wall mounting
G02-VOC-B380A IAQ, temperature and
humidity monitor/alarm
Three-color backlit LCD, buzzer 
alarm; 1 on/off output; touch-key for 
operation Modbus RS485 interface
230VAC Wall mounting
921 Wall mounting plate Accessory for wall mounting
921+922 Desktop bracket As be the desktop type (just for G02-VOC-B332C)

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