P611 Handheld Particle Counter

Handheld Particle Counter
Model P311

The P311 handheld particle counter measures 0.3 m to 5.0 m with a flow rate of 0.1 CFM (2.83 LPM).

Only 1.26 lb (0.57 kg), user-friendly and easy to configure, this handheld particle counter displays up to 3 size channels on its 3.5" LCD display.

The P311 stores 8,000 sample records that can be viewed on the unit or on a computer via USB cable. The P311 complies with ISO 21501-4 and includes a one year warranty. With excellent quality and reliable performance, the Airy Technology P311 is the best priced handheld particle counter in the market.

P311 Handheld Particle Counter Features & Benefits
* Measures 0.3 m to 5.0 m
* 0.1 CFM (2.83 LPM) flow rate
* Measures 3 channels of simultaneous data
* Weighs only 1.26 lb (0.57 kg)
* Long life laser diode
* USB output
* Removable and rechargeable AA batteries
* Includes carrying case, battery charger and download software
* Stores up to 8,000 sample records and 199 sample locations
* View data recorded on-screen or via computer
* Large color LCD display
* Concentration limit of 4,000,000 per ft3
* Complies with ISO 21501-4 and JIS B9921 standards
* Lightweight high-impact injection molded plastic enclosure
* Easy to clean and wipe down
* 1 year limited warranty

P311 Handheld Particle Counter Specifications
* Measures 0.3 μm to 5.0 μm
* 0.1 CFM (2.83 LPM) flow rate
* Measures 3 channels of simultaneous data
* Weighs only 1.26 lb (0.57 kg)
* Concentration limit of 4,000,000 per ft3
* Power: DC 5V 1A (Mini USB TYPE-B)
* Operating Temperature: 5 to 35'C
* Operating Humidity: 20% to 95%RH non-condensing

Remote Particle Counter
Model P235

The P235 remote particle counter measures 0.5 µm and 5.0 µm with a flow rate of 0.1 CFM (2.83 LPM). Integration is easy into a real-time monitoring or building management system via Modbus RTU or Modbus ASCII. The P235 is the smallest remote particle counter in the market and has easy mounting options. The P235 complies with ISO 21501-4 and includes a 2 year limited warranty.

P235 Remote Particle Counter Features & Benefits
* Measures 0.5 µm and 5.0 µm
* 0.1 CFM (2.83 LPM) flow rate
* Measures 2 channels of simultaneous data
* Long life laser diode
* Modbus RTU or Modbus ASCII outputs
* Concentration limit of 2,000,000 per ft3
* Complies with ISO 21501-4 and JIS B9921 standards
* Lightweight stainless steel enclosure
* Easy to clean and wipe down
* 2 year limited warranty

This instrument is carefully designed and developed by the relevant technical personnel of our company according to the needs of power users. The product is beautiful in appearance and easy to carry and use. It replaces the traditional bulky test instruments and test methods and is very popular among professionals.



1. Small size and light weight.

2. The measurement process is safe and fast and the measurement result is accurate.

Remote Particle Counter
Model P240

The P240 4-channel remote particle counter measures 0.3 m, 0.5 m, 1.0 m and 5.0 m with a flow rate of 0.1 CFM (2.83 LPM). Integration is easy into a real-time monitoring or building management system via Modbus RTU or Modbus ASCII. The P240 is the smallest 4-channel remote particle counter in the market and has easy mounting options. The P240 complies with ISO 21501-4 and includes a 2 year limited warranty.

P240 Remote Particle Counter Features & Benefits
* World's smallest 4 channel remote particle counter
* Measures 0.3 m, 0.5 m, 1.0 m and 5.0 m
* 0.1 CFM (2.83 LPM) flow rate
* Measures 2 channels of simultaneous data
* Long life laser diode
* Modbus RTU or Modbus ASCII outputs
* Concentration limit of 2,000,000 per ft3
* Complies with ISO 21501-4 and JIS B9921 standards
* Lightweight stainless steel enclosure
* Easy to clean and wipe down
* 2 year limited warranty

P240 Remote Particle Counter Specifications
* Measures 0.3 μm, 0.5 μm, 1.0 μm and 5.0 μm
* 0.1 CFM (2.83 LPM) flow rate
* Measures 2 channels of simultaneous data
* Power: 9-30 VDC
* Concentration limit of 2,000,000 per ft3
* Operating Temperature: 5 to 35'C
* Operating Humidity: 20% to 95%RH non-condensing
* World's smallest 4 channel remote particle counter