H303 and H503 Handheld Airborne Particle Counters

0.1 CFM (2.83 LPM)

  • Industry’s highest concentration of 15,000,000 particles/ft³ @ 10% coincidence loss
  • Ideal for use in Cleanrooms, Industrial Health & Safety, and Air Quality applications
  • >10 hours continuous operation on a fully charged battery
  • Industry’s first Sleep Mode and Power Conservation Mode with intelligent battery
  • Unparalleled and most comprehensive internal self-diagnostics of any remote particle counter
  • Internet of Things (JSON) communication allows for network or cloud based data options

The Airy Technology® H303 and H503 Handheld Particle Counters measure 0.3 or 0.5 to 25.0 μm with a flow rate of 0.1 CFM (2.83 LPM). Easy to configure, these instruments display up to 3 user-selectable size channels as well as temperature and relative humidity. View data or export to Instrument Management Software (IMS). Airy Technology® counters can be controlled and monitored remotely via web browser.

All Airy Technology® counters meet ISO 21501-4 and JIS B9921. The H303 amd H503 ensure compliance with an on-board pulse height analyzer.

Measures 0.3 μm to 25.0 μm
0.1 CFM (2.83 LPM) flow rate
Long life laser diode technology
Measures up to 3 channels of simultaneous data
Approximates mass concentration in μg/m³
Integrated handle for one-handed operation
Large easy-to-use icon driven color touch screen display
Stores up to 45,000 sample records and 1,000 sample locations
Easy configuration and transferable from instrument to instrument
Connect using USB or (optional) Ethernet, Wireless 802.11 b/g
Displays reports for ISO 14644-1, EU GMP Annex 1 and FS 209E
Internal audible alarm
User-selectable channel sizes
Complies with ISO 21501-4 and JIS B9921 standards
Easy to clean and wipe down with minimal particle traps
User-definable reports
Lightweight high-impact injection molded plastic enclosure
External printer and printing option
Optional temperature and relative humidity probe available
1 year limited warranty. Extended warranties available.
Size Range0.3 to 25μm
Size ChannelsFactory calibrated at 0.3, 0.5 and 5.0 μm
Flow rates0.1 CFM (2.83 LPM)
Concentration Limit15,000,000 Particles/ft³ @ 5% coincidence loss
Light SourceLong life laser diode
Battery Run Time>10 hours continuous operation
Zero Count<1 count / 5 minutes (<2 particles / ft³) (per ISO 21501-4 & JIS)
Count ModesAutomatic, manual, real-time meter, cumulative/differential, mass concentration, count or concentration
Count Alarms1 to 9,999,999 counts
CalibrationNIST traceable
Display4.3" (10.9 cm) WQVGA (480x272) color touch screen
Printer (Optional)External thermal printer
Vacuum SourceInternal pump with automatic flow control
Filtered ExhaustInternal HEPA filter
Number of Channels3
Custom Size ChannelsCalibration for custom size channels available
Audible AlarmAdjustable built-in alarm
BatteryRemovable Li-ion
Battery Recharge Time<2 hours with external battery charger
Communication ModesUSB
Optional Communication Mode Ethernet, Wireless 802.11 b/g, RS485 or RS232
AlarmAlarms on counts for all particle sizes, low battery, sensor failure, environmental sensors and flow
StandardsISO 21501-4 and JIS B9921
CalibrationRecommended minimum once per year
External SurfaceHigh impact injection molded plastic
Dimensions (L x W x H)10” x 5” x 4.5” (25.4 cm x 12.9 cm x 11.4 cm) includes handle and does not include probes
Weight2.2 lb (1.0 kg)
AccessoriesOperating manual on USB flash drive, isokinetic probe, filter, battery, data download software, USB cable, power supply & cable
Optional AccessoriesPrinted manual, carrying case, spare battery, external battery charger, external printer, isokinetic probes, and temperature relative humidity sensor
Buffer Memory45,000 sample records (rotating buffer) including particle count data, environmental data, locations and times. Scrollable on screen or printout
Sample LocationsUp to 1,000 locations 20 characters long
Sample Time1 second to 99 hours
Power110 to 240 VAC 50/60 Hz universal in-line power supply
Operating Conditions41º to 104ºF (5º to 40ºC) / 20% to 95% non-condensing
Storage Conditions32º to 122ºF (0º to 50ºC) / Up to 98% non-condensing
Warranty1 year limited warranty. Extended warranties available.


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

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

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