Met One 804 Particle Counter


Brand: Met One
Part #METONE-804

804 Four Channel Handheld Particle Counter
Accurate – Affordable – Reliable


Small Size —Big Performance
The 804 handheld particle counter is a 4 channel portable particle counter that counts particles 0.3 microns to 10.0 microns – giving you portability and reliability at the lowest price in the industry.

Completely Self-Contained—Selectable Particle Sizes
Don’t let the size fool you—this unit is completely self contained with its own internal battery and sample pump, and is programmable, allowing you to 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.


OPERATING PRINCIPLE Counts individual particles using scattered laser light
Particle Size Range 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 ± 10%, to calibration aerosol
Sensitivity 0.3 μm
Flow Rate 0.1 cfm (2.83 lpm)
Sample Time Adjustable (3-60 seconds)
Status Indicators Low Battery, Service
Light Source Laser diode, 30 mW, 780 nm
Power 7.2V Lithium Ion self-contained battery pack—provides 30 hours of typical intermittent
operation, up to 8 hours continuous use
AC Adapter/Charger AC to DC module intelligent Lithium Ion charger, 100 – 240 VAC to 8.4 VDC @ 1500 mA typical.
Charge time 2.5 hours typical
Communications USB
Certifications Meets or exceeds CE, ISO, ASTM, and JIS international certifications
Display 2 line by 16-character LCD
Keyboard 2-button membrane
Size Height: 6.75″ (17.2 cm) Width: 3.75″ (9.5 cm) Thickness: 2.0″ (5.1 cm)
Weight 1.31 lb (21 oz) (0.60 kg)
Operating Temperature 0˚ to +50˚C
Storage Temperature -20˚ to +60˚C
Supplied Operation Manual
AC to DC Converter Module with IEC AC Power Cord
NIST Traceable Calibration Certificate
USB Cable
Optional Carrying Case (P/N 8517)
Protective Boot (P/N 80450)
Zero Filter Kit (P/N 80846)
Flow Meter Kit (P/N 80530)

Controlled Environments Filter Testing Indoor Air Quality Laboratory Environments Process Control Trace Contamination Source HVAC Applications QA Programs


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