Factory wholesale VOC monitor for buidling

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°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 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)×85mm(W)×36.5mm(H)

Installation standard

Desktop or wall mount (65mm×65mm or 85mmX85mm or 2”×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