This product is a CO2 Meter ,it combines Infrared (NDIR) sensor real-time monitoring of Carbon dioxide (CO2), temperature,humidity on its display. It is with the 3-color emoji symbols that visually display the concentration of CO2. if the CO2 concentration reaches the(set) all-alarm value, then the monitor will trigger a danger alarm.
Its small and exquisite body design makes it convenient for you to carry around. Whether placed in a pocket, backpack, or in a car, it can be checked anytime, anywhere. Whether traveling, on a business trip, or in a newly renovated house, it can become your caring air quality guardian, safeguarding your health.

-Material:ABS

-Product Size： 84*80*52 MM

-Led Screen display 

-CO2 Technology :  infrared ( NDIR)

-Temperature unit : Celcius 
-CO2 Detection range:  400-5000 ppm 

-CO2 Alarm  value : 1000ppm 
-Support hand Setting  CO2 alarm threshold from 800ppm-2000ppm.                                                         
-CO2 Alarm  on /off function (if users do not like alarm ,people can turn it off )
-Power supply：rechargeable  Li-battery 1000mah includding USB Chargeing cable
-Included:Main Unit+manual+charging cable

Advantage : 
-Integrated detection with CO2/Temperature/Humidity
-Auto calibration 
-Exceeding Alarming with auto detection and auto measuring
-Alarm sound can be turned  off / on  by hand operation
-Color Smile face , very realistic.
-Mini size very smart
-User-friendly and easy operation 

DM77 package details： 
Product N.W.：150g
Product G.W.：250g 
Package Dimension： 11.4*6.7*10.4 cm 
CTN Dimension： 42*35*24 mm
CTN Weight:10.5KG
40sets/CTN

FAQ
1 Q: What the test index are include for air quality monitor? 
A : CO2: is for carbon dioxide,Infrared sensor(NDIR) Temperature and Humidity 
 
Suitable for detecting CO2 concentration in industrial, agricultural and residential environments.
Control the ventilation system according to the monitored target value (CO2 concentration).
 
2 . Q: What is the standard range for CO2? 
A: CO2 Test Range: 
400~1000 ppm 
1001~2000ppm
2001~5000ppm
Temperature Test Range: 0－50℃
Humidity Test Range 0-95%RH ; 
 
 3.  Q: How to charge it? 
mini  USB port  charging line which is included in the standard  accessories .  
We also offer adapter(Like US adapter, Europe adapter...) if  add extra cost. 
 
 4.  Q: How about OEM or custom? 
A: Sure, Asprofessional and stable manufacture for CO2 merter factory, we can support many custom contents as below; 
a  Printing logo on product .
b  Package, support custom pacakge(We can send neutral artwork to client to design package) 
c  Manual, support custom maual for many language,like English, German, Japanese, Spanish, Dutch, Polish
d.  some custom sticker, like Amazon FBA upc label... To meet clients requirement.
e. Customized  software  is also possible  such as  change the CO2 standard value  , such as  shoot logo  display , such as  customized  language display  Etc .

 5.  Q: what's certificate include? 
A: 1.CE and Rohs 2. MSDS and UN38.3

Common fields 
1. Carbon dioxide monitoring of various industrial and agricultural plants, workshops, greenhouses, clean rooms,
etc. 
2. Ventilation control and environmental quality monitoring required for homes, villas, office buildings, meeting rooms,
classrooms and other fields. 
3. Ventilation control and environmental quality monitoring in public places such as hotels, exhibition halls, hospitals, shopping
malls, bars, restaurants, airports, train stations, entertainment halls, and theaters. 
4.Units that produce and use carbon dioxide gas, etc. 
Non-mandatory reference rating: 
a) 350 ~ 400ppm-usual outdoor air level. 
b) 400 ~ 1,000ppm-typical value in well-ventilated living space. 
c) 1,000 to 2,000 ppm-an air level that is inadequate, sleepy, and sufficient to cause complaints 
d) 2,000 ~ 5,000ppm-stagnant, old, sultry air level. It is headache and drowsiness, accompanied by
inattention, decreased concentration, rapid heartbeat and slight nausea. 
e)> 5,000 ppm-Exposure to it may cause severe hypoxia, resulting in permanent brain damage, coma and even death.