Ladies and gentlemen, today we would like to introduce a new product carefully crafted by our company - the SND1303 28.3L desktop dust particle counter.

（1） Accurate detection, safeguarding clean spaces

The SND1303 desktop dust particle counter is based on the principle of single particle laser scattering, paired with an industrial grade laser light source and large aperture optical glass lenses, giving the device a pair of "golden eyes" to accurately identify particles of different sizes.

（2） Compliant with standards, safeguarding data quality

International standards: ISO 21501-4: 2007 Granularity Analysis Single particle optical measurement method Part 4: Clean Room Light Scattering Dust Particle Counter

Cleanliness level judgment criteria: ISO 14644 FS209E

Calibration specifications: GB/T 6167-2007 Dust Particle Counter Performance Test Method and JJF 1190-2008 Dust Particle Counter Calibration Specification

（3） Sound and light alarm, response in seconds for abnormal situations

Timely detection of environmental anomalies is crucial in the production process. The SND1303 desktop dust particle counter comes standard with sound and light alarm functions, allowing for flexible setting of alarm values, making it a "safety guard" for environmental monitoring.

（4） Grade determination, clean condition "clear at a glance"

The cleanliness level determination function of SND1303 desktop dust particle counter can quickly and accurately determine the cleanliness level of the current environment based on real-time monitoring data, such as ISO70000 level, ISO80000 level, etc.

（5） Built in printing, data recording with "zero latency"

The SND1303 desktop dust particle counter is equipped with an embedded high-speed thermal printer. Whether it is real-time data or historical data, simply click the print button and the device can immediately output paper records.

（6） Widely used to support industry development

The SND1303 desktop dust particle counter is suitable for various occasions with strict cleanliness requirements, such as the semiconductor industry, pharmaceutical industry, electronics industry, food processing industry, and precision machining cleanrooms. It can reduce risks, reduce costs, and provide strong guarantees for the production and development of various industries.

（7） Other outstanding performance

Convenient communication: Standard USB, RS485, Ethernet for convenient data transmission, optional 4G, LoRa, Wi Fi wireless communication for 7 × 24 real-time online monitoring.

Large capacity storage: Supports local storage of 7 million pieces of data.

Long lasting battery life: Equipped with a large capacity battery, the battery can last up to 10 hours.

Human computer interaction: 8-inch high-definition color touch screen, combined with Android system, easy to operate, user-friendly interface.

Metal shell, spray painting process: enhances the "high-end feeling" of the equipment, sturdy and durable.