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, >2.5, >5, and >10 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 Li-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 Li-ion charger, 100-240 VAC to 8.4 VDC @ 1500 mA typical. Charge time 2.5 hours typical |
| Communications | USB |
| Particle 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" (5.1 cm) |
| Weight | 1.31 lb (21 oz) (0.6 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 (Met One Part Number 9801) |
Datasheet

