Met One 804 Four Channel Handheld Particle Counter :: Laser Particle Counters :: Portable Instruments :: Zefon International, Inc.

Your Cart Your Cart
Cart is empty

View Cart
Order History

My Account My Account


Remember Me
Log in
Forgot Password?

If you have disabled Javascript in your browser click here

Follow Us: Follow Zefon on Facebook  Follow Zefon on Twitter

Information Information
About Zefon
Contact Us
FAQ - General
FAQ - Product
Authorized Distributors
Literature Download
Security and Privacy
Terms & Conditions

Zefon International, Inc. :: Portable Instruments :: Laser Particle Counters :: Met One 804 Four Channel Handheld Particle Counter

Met One 804 Four Channel Handheld Particle Counter  
Met One 804 Four Channel Handheld Particle Counter 
Printable version

The Met One Model 804 Four Channel Particle Counter gives you portability and reliability at the lowest price in the industry. Fast sampling, simple operation, USB interface and data storage in a sturdy yet lightweight package.

  • Selectable Particle Sizes
    Choose your particle sizes of interest from seven sizes: 0.3, 0.5, 0.7, 1.0, 2.5, 5.0 or 10.0 microns.

  • Fast Sampling
    Unlike other counters that can take up to a minute to deliver results, the 804 incorporates user selectable sampling time up to 1 minute and displays counts in as little as 3 seconds. The unit will take single or continuous samples.

  • Simple Operation
    Only two front-panel buttons and scroll wheel provide a user friendly, menu driven platform that provides ease in configuration.

  • Battery or AC Powered
    The self-contained battery pack powers the unit for 30 hours of typical intermittent operation, and for up to 8 hours of continuous use. The included AC charger / adapter operates the counter, even when the battery pack is discharged, and recharges the depleted battery in 2.5 hours.

  • Flexible Data Interfaces / USB Communication
    Stores up to 2500 records for output, Excel formatted output via included single computer software. USB interface provides quick data download and field firmware upgrades.

Particle Size Ranges Four Channels :   >0.3, >0.5, >0.7, >1.0, >2.5, >5.0, and >10.0 μm (selectable)
Concentration Range
0 – 3,000,000 particles per cubic foot (105,900 particles/L)
Accuracy Accuracy  ± 10%, to calibration aerosol
Sensitivity 0.3 μm
Sample Time
Adjustable (3-60 seconds)
Light Source
Laser diode, 30 mW, 780 nm
Flow Rate 0.1 cfm (2.83 lpm)
Display 2 line by 16-character LCD
Connectivity USB
Data Storage 2,500 sample records
Operating Temperature 0˚ to +50˚C
Storage Temperature -20˚ to +60˚C
AC Adapter/Charger
AC to DC module intelligent Lithium Ion charger, 100 – 240 VAC to 8.4 VDC @ 1500 mA typical.
Battery Life Up to 8 hours of continuous use; up to 30 Hours intermittent Use
Battery Type 7.2v Lithium Ion
Battery Recharge Time 2.5 Hours Typical
Physical Dimensions 6.75” (17.2 cm) H x  3.75” (9.5 cm) W x 2.0” (5.1 cm) D
Weight (with battery) 1.31 lb   (21 oz)   (0.60 kg)
Certifications Meets or exceeds CE, ISO, ASTM, and JIS international certifications
Warranty Warranted by Met One Instruments for 2 years against defects in workmanship when annual calibration and maintenance is performed as per the user manual.

Each Met One Model 804 is shipped complete with:

  • Operation Manual
  • AC to DC Converter Module with IEC AC Power Cord
  • NIST Traceable Calibration Certificate
  • USB Cable
  • Software

Additional Information Available

1. Product Data Sheet for Met One Model 804
2. Operation Manual for Met One Model 804

Manufacturer Met One Instruments
U/M Each
Stock Status Normally Ships within 24 hours

Product Price Order

  Met One Model 804 Particle Counter
  Product #: MO-804


  Protective Boot for Model 804
  Product #: MO-80450


  Zero Filter Kit for Model 804
  Product #: MO-80846


  Carrying Case for Model 804
  Product #: MO-8517


  Flow Meter Kit for Model 804
  Product #: MO-80530


Add to cart
All products and prices posted are valid for sale in the USA only
If you are not from the USA, CLICK HERE to locate
an Authorized Zefon Distributor in your area.


Copyright © 2003-2016 Zefon International, Inc.
An ISO 9001-2008 Certified Company