Free Shipping Over $49
Shipping within 24 hours. Free Standard Shipping On Orders Over $49 (US Only): 3-5 Days for delivery.
30 DAYS RETURNS
Not the right fit? No worries. We'll arrange pick up and a full refund within 7 days including the delivery fee.
1 YEAR WARRANTY
Quality comes first and our products are designed to last.
PM-900M is a laser-based particle sensor which uses light scattering method to detect and count particles and calculate PM1.0, PM2.5, PM10 concentration in a given environment. The sensor features an imported processing chip and photosensitive element. Signals are collected and processed by the microprocessor chip and then output in digital format. The sensor is ideal to detect the concentration of different particles precisely in real time.
1. Adopted by new-advanced fourth generation laser particle sensor, based on Mie-scattering theory, it can accurately measure PM1.0/PM2.5/PM10, other particles as small as 0.3um, making particle measurement more accurate.
2. High-performance laser module, depth algorithm optimization compensation, airflow constant system, making measurement more accurate and stable.
3. It has a long life time up to 20,000 hour accompanied with Industrial-grade components.
4. 12mm ultra-thin volume, embedded built-in interface for quick installation.
5. Six-sided fully enclosed metal body, proven EMC and EMI performance, strong anti-interface, air inlet or outlet from the front.
Air purifiers, air quality detectors, fresh air systems, air conditioners and automobiles with air purifying function, consumer electronics.
- Output data: PM1.0, PM2.5, PM10 concentration and particle count
- Concentration range (PM2.5): 0-999 ug/m³
- Effective range (PM2.5): 0-500 ug/m³
- Accuracy: ±10ug/m³(0-100 ug/m³)
- ±10% (100-500 ug/m³)
- Minimum distinguishable Particle diameter: 0.3um
- Power supply: 5V±0.1V (Ripple<100mV)
- Max working current: 100mA
- Working temperature: -10℃-60℃
- Working Humidity: 0-95% (non-condensing)
- Storage temperature: -30℃-70℃
- Response time: <1.5s
- Resolution: 1ug/m³
- Maximum dimensions: 2*1.7*0.8 inches (50x42.7x20.4mm)
- Warranty: 1 year
User manual: Download
Value to Customers:
Consistent, stable, reliable.
Small zero drift, good repeatability.
Compact size, easy to mount.
Low power consumption, long service life.
High sensitivity, fast response.
Proven EMc and EMI performance, strong anti-interference
The sensor is based on the particle concentration analysis technology of Mie scattering theory. A laser light source illuminates a particle as it is pulled through the detection chamber. The particles are scattering when passing through the laser beam. The information processing circuit converts the light intensity signal of the scattered light via the photoelectric sensor into a voltage pulse signal, which is preamplified, converted by AD into digital signal. After noise processing and optimal algorithm analysis, particle count with the equivalent particle size per unit volume can be obtained, and then the particle concentration is calculated. Refer to the following figure for how the principle works:
For every PM series particle sensor you purchase, in order to ensure the sensitivity and accuracy, we need to temporarily order production, which will prolong the overall logistics process by 5-12 weeks. If you have stringent needs regarding the delivery time, please be careful to purchase PM series particle sensor. Due to the efficiency of production, we have a minimum limit on the quantity of products you purchased, we hope you can understand. If you have other questions, you can email firstname.lastname@example.org to contact us.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return results from our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper. However, you will receive a refund more quickly in many cases. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, please email email@example.com.
We'll notify you via email of your refund once we've received and processed the returned item.
Return Shipping Address: Elitech Technology, Inc. 2528 Qume Drive #2, San Jose, CA 95131, United States
Shipping: We can ship to virtually any address in the world.
Note that there are restrictions on some products, and some products cannot be shipped to international destinations. When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose.
Depending on your chosen shipping provider, shipping date estimates may appear on the shipping quotes page. Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
United States: Shipping within 24 hours.
Free Standard Shipping in the US: 3-5 Business Days for delivery.
Next Day Shipping Service Available in the US: Orders placed before 12:00 pm PST will be shipped on the same day! The Next Day shipping on Friday will be shipped on next Monday(Since we don't work at the weekend).
Worldwide: Fast Worldwide DHL Shipping.
2-3 business days to prepare the items and 10-14 business days for delivery. The buyer covers tax.
Note: ISO 17025 certified version data loggers are PRE-SALE only.
Lead time: 2 weeks.
The shipping cost will be shown according to the weights and countries at the checkout. If your items were lost in transit, please email firstname.lastname@example.org.
We will send you a replacement or a refund.
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