Hot selling IAQ(Volatile Organic Compounds) monitor

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), 10 mins (normal operation)

VOC measuring range

0~30ppm   ( 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)

±3%RH (25°C, 40%-60%RH)

Display resolution

0.5°C

1%RH

Stability

±0.5°Cper 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 22ppm

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