Humidity Monitor, Alarm

We are offering humidity monitor, alarm. • features
 real time monitor ambiance air quality
 semiconductor mix gases sensor with 5 year life
 gas detection: 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
iaq is a comprehensive index, including room temperature, humidity, fresh air, and diverse air contaminants of low concentration. Monitoring iaq is very important to guarantee healthy life and work. Air pollution caused by decoration, paints on new furniture, smoke from or cooker and life or office scrap has become an invisible killer of human life, especially to the infant, the pregnant and the old, it can also cause nerve disorder or weak immunity, which is a potential danger to health.
So the key point is to monitor and control the environment we live in, and make invisible pollution visible.
As there are many kinds of harmful gases in the air, it become really cost to monitor every single kind of air. It is recommended that co and iaq be monitored at home, and co2, co and vocs in classroom and office.
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 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.
• 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.
• specifications
gas detection highly sensitive to many harmful gases, such as harmful gases from construction and decoration materials, vocs (like toluene and formaldehyde); 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 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℃ 0 -95%rh
accuracy ±0.5℃ (25℃, 40%-60%rh) ±3%rh (25℃, 40%-60%rh)
display resolution 0.5℃ 1%rh
stability ±0.5℃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℃~60℃ (-4℉~140℉)/ 0~ 95% rh
storage conditions 0℃～50℃ (32℉～122℉)/ 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.