Product Details
Lampblack Concentration Sensor KGD-PM-221
Product Introduction
The KGD-PM-221 infrared lampblack sensor module adopts the
principle of optical scattering and can detect the changing trend
of the concentration of particulate matter in the air with particle
sizes between 0.3μm and 10μm. The sensor has an infrared
light-emitting diode and a photosensitive tube built-in. When the
light emitted by the light-emitting diode encounters particulate
matter, reflected light will be generated. The photoelectric sensor
reflects the concentration of particulate matter in the air by
detecting the intensity of the reflected light. The sensor can
communicate and output the mass concentration of particulate matter
through a serial port signal.
Product Features
- Electromagnetic shielding design for anti-interference.
- Small in size and high in precision.
- Design of pollution-proof air channels for long-term operation.
- Low power consumption and wide measurement range.
- Short response time.
Technical Parameters
Detected Object | Lampblack concentration |
Data Output | PM2.5 |
Detection Accuracy | ±30ug/m³ or ±30% of the reading (@25±2℃, 50%±10%RH) |
Operating Conditions | -20℃~+75℃, 0~95%RH (non-condensing) |
Storage Conditions | -40℃~+85℃, 0~95%RH (non-condensing) |
Operating Voltage | DC 5V±0.2V, with a ripple of less than 100mV |
Operating Current | ≤30 mA |
Communication Interface | UART: 4.5V level; PWM: 4.5V level |
Product Dimensions | W66.8H38.8D21.6mm |
Product Service Life | ≥5 years |
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.