P311 Handheld Particle Counter

P311 Handheld Airborne Particle Counters

0.1 CFM (2.83 LPM)

The Airy Technology® P311 handheld particle counter measures 0.3 μm to 5.0 μm 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 Airy Technology® 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 on the market.

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)
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 LCD display
Concentration limit of 4,000,000 per ftÑ
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
Size Range0.3 to 5.0 μm
Channel SizesChannel 1: 0.3/0.5 μm; Channel 2: 0.5/1.0/2.0/2.5 μm; Channel 3: 5.0 μm
Counting Efficiency50% at 0.3 μm; 100% for particles > 0.45 μm (per JIS)
Concentration Limits4,000,000 particles / ft3 at 5% coincidence loss
Light SourceLong life laser diode
Zero Count Level<1 count / 5 minutes (per JIS B9921)
Flow Rate0.1 CFM (2.83 LPM)
CalibrationNIST traceable
Sample Probe/TubingIsokinetic sampling probe and probe for tubing
Sampling ModesManual, automatic, ISO1, cumulative/differential, count/concentration
Sampling Time1 second to 99 minutes 59 seconds (Configurable)
Sampling Frequency1 to 1,999 cycles or continuous (Configurable)
Sample OutputInternal HEPA filter
Vacuum SourceInternal pump
Communication InterfaceUSB
Data Storage8,000 sample records
Display3.5” (8.9 cm) 320 x 240 LCD
PowerDC 5V 1A (Mini USB TYPE-B)
BatteryRemovable AA Ni-MH
Dimensions (L x W x H)7” x 3.5“ x 1.9” (17.8 cm x 9 cm x 4.7 cm) does not include probes
Weight1.26 lb (.57 kg)
StandardsISO 21501-4 and JIS B9921
Warranty1 year limited warranty
Operating Conditions5° to 35°C 20% to 95%RH non-condensing
Storage Conditions-20° to 50°C Up to 98%RH non-condensing
Included AccessoriesOperating manual on USB Key, AC adapter, isokinetic inlet, probe for tubing, USB cable, purge filter, data download software, 4 x AA batteries with charger, calibration certificate, & carrying case


B Series Carrying Case
Part Number: AS-99023

Wireless 802.11 b/g Output
with Internal Antenna
Part Number: EE-80092

Battery 55Wh
Rechargeable & Removable
Part Number: EE-80003A

External 55Wh Battery Charger
(For EE-80003A)
Part Number: AS-99005A

Temperature & Humidity Probe
±1° (0.5°C), 15-90% ±2%RH
Part Number: EE-80122A

Purge Filter
0.1 CFM (2.83 LPM)
Part Number: AS-99002

Purge Filter Assembly
0.1 CFM (2,83 LPM)
Part Number: PS-99002A

RS-485/232 Connector
(5 POS)
Part Number: EE-79015A

Isoprobe Threaded (Ni plated Al)
0.1 CFM (2,83 LPM)
Part Number: PS-12041

Isoprobe Threaded (Stainless)
0.1 CFM (2,83 LPM)
Part Number: PS-12070

Isoprobe Barbed (Stainless)
0.1 CFM (2,83 LPM)
Part Number: PS-12022

Inlet Fitting Barbed
1/8″ (Stainless)
Part Number: PS-12005

External Thermal Printer
Includes 2 Rolls of Paper
Part Number: AS-99011

Thermal Printer Paper
Single Roll
Part Number: AS-99012

Thermal Printer Paper
Cleanroom Paper (10 Pack)
Part Number: AS-99013

Power Supply
15V -2A 100-240 VAC
Part Number: EE-80127

Power Supply Connector
USA, Japan, Philippines, Taiwan
Part Number: EE-80128

Power Supply Connector
Europe & Korea
Part Number: EE-80129

Power Supply Connector
UK, Malaysia & Singapore
Part Number: EE-80130

Power Supply Connector
China & Australia
Part Number: EE-80131

USB Cable
6ft (1.8m)
Part Number: AS-99022

Tubing (per foot)
3/8″ OD (1/4″ ID)
Part Number: AS-99019

Tubing (per foot)
1/4″ OD (1/8″ ID) Bev-A-Line XX
Part Number: AS-99036

Instrument Management Software
& User Manual (USB Key)
Part Number: MN-24018

User Manual
Part Number: MN-24001P