DM509 Handheld Indoor PM2.5 CO2 HCHO TVOC Temperature Humidity AQI Air Quality Monitor Detector

 

PM2.5 Testing Standards:
Excellent 0~35
Good 35~75
Light pollution 75~115
Moderate pollution 115~150
Heavy pollution 150~250
Severely polluted more than 250

Formaldehyde Standard:
Less than 0.100: safety range
0.101-0.200: Light pollution
0.201-0.300: Moderate pollution
0.301 or more: heavy pollution

TVOC Standard:
Less than 0.600: safety range
Achieve 0.601 or more: Exceeding the standard can cause respiratory system
Abnormal, inflamed, cancerous, etc.

Specifications:
- Product name: CO2 PM2.5 Multi-functional Air quality detector
- PM2.5 Sensor technology: Laser Scattering
- HCHO/TVOC Semiconductor sensor
- CO2 Sensor
- Temperature and Humidity sensor
- LCD screen display, 24 hours real time monitoring
- Detection range: AQI (0-500); PM2.5 (0-999ug/M³); CO2 (0-5000ppm); HCHO (0.001-1.999Mg/M³); TVOC (0.001-9.999Mg/M³)
- Power supply: rechargeable Li-battery

Package Included:
- 1 x Set of Air Quality Detector

 

Operating:
1) Power on/off button, used to confirm highlighted options or to turn device on/off by pressing for 3 seconds                                           
2) Menu Button, used to call up the dialog box for adjusting various parameters.
3) Exit/ESC button, used to exit from menus
4) Up/Switch/Increase Button, used to scroll
between interfaces or navigate within menus
5) Down/Switch/Decrease Button, used to scroll between interfaces or navigate within menus
6) LCD screen, display various parameters
7) USB Charging Port

 

Detail photo

FAQ 

Q1. Can I have a sample order?

A: Yes, we welcome sample order to test and check quality.

 

Q2. What about the lead time?

A: Sample ususally take within 3 working days.

 

Q3. Do you have any MOQ (minimum order quality)limit?

A: For standard product, usually 1pcs/item. For the OEM order, MOQ at least 50pcs/item.

 

 

Q4. How to proceed an order?

A: After buyer confirm the product&price is ok and ready to buy, order will be please tell us your delivery address, phone number, sometimes need email. Then we can draft the order and it will have a alibaba paying link.

 

Q5. After paid, what info of the supplier provided?

 

A: Tracking number

 

Q6: Do you offer guarantee and after-service for the products?

A: Yes, 6- 12 months warranty for our products. Note: We will do not take the responsibility for Man-made damage or improper operation. Delivery demage will be negotiate.

 

 

Packing and Shipping

Package: Normally we use the standard paper package to export worldwide.

 

Shipping : 

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier  we are co-operating at present.

 

2. By chinese small parcel, usually for the customer to save the cost. But Chinese small parcel have the risk for lost parcel. Note: If we got the parcel back, we only can refund the item cost. If we didn't get the parcel,then sorry we can't refund any.

3. By Air: Delivery from the Shenzhen airport to customers’ destination city air port.

4. By Sea: Delivery from the Shenzhen sea port .

 

Company information

TZT has been speciliazing in Business & Industry,Hobbies & Toys,CNC Products and Health care supplies for over 5 years.We committed to enhance customer satisfaction by continually improving the process with a vision of expertise in the field. 
Aiming to provide high quanlity products and great service for buyer,we are strict on product quanlity control and offer instant communication service.Welcome to contact us!

Our Advantages:
-  Source only the best consumer goods and ensure the highest quality.
-  Streamline the buying and payment process, and make it as easy as possible.
-  Help the customers all over the world discover products and manufacturers in China.
-  The Shortest order processed time and speed delivery