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.
Specifications
| OPERATING PRINCIPLE | Counts individual particles using scattered laser light | 
| PERFORMANCE | |
| 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 | 
| ELECTRICAL | |
| 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 | 
| INTERFACE | |
| Display | 2 line by 16-character LCD | 
| Keyboard | 2-button membrane | 
| PHYSICAL | |
| 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) | 
| ENVIRONMENTAL | |
| Operating Temperature | 0˚ to +50˚C | 
| Storage Temperature | -20˚ to +60˚C | 
| ACCESSORIES | |
| Supplied | Operation Manual AC to DC Converter Module with IEC AC Power Cord NIST Traceable Calibration Certificate USB Cable Software | 
| Optional | Carrying Case (P/N 8517) Protective Boot (P/N 80450) Zero Filter Kit (P/N 80846) Flow Meter Kit (P/N 80530) | 
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