| Light source | Semi-conductor laser, life time over than 35000hours | 
| Sampling flow | 2.83L/min (0.1ft3)Imported sampling pump | 
| Display type | LCD,real-time display,last period display,real-time concentration
display,time display,date,measured value,temperature and
humidity,room,number,sampling site,sampling times,battery
power,statues, etc. 95% UCL count, can directly display particle
concentration(cap/CMB) | 
| Rechargeable battery | Li-ion battery,7.4 V,2200mAh. | 
| Power supply | AC power adapter,AC :100V~245 V,50/60 Hz to DC: 7.4 V,1 A; | 
| Working hours | 6 hours(Battery indicator) | 
| Counting mode | aggregate value, difference value, concentration value | 
| Testing mode | Unitary, repeat, continuous, counting, long-distance | 
| Unit conversion | The unit can be converted to m3 | 
| Grain size channel | 0.3 , 0.5, 1.0, 3.0, 5.0, 10μm, six particle sizes can be counted
at the same time | 
| Sampling period | 1~10000(s) Delay count:0~99(S ) Self-purification:≤10 (min ) | 
| Working environment | Temperature:10~40℃ (50~104℉) Relative temperature:20~90%RH,no condensation. Barometric pressure:86-106KPa | 
| Temperature and humidity | Option (1)Temperature:0~50℃±1℃. (2)Humidity:0~100%RH±5% | 
| UCL setting | Sampling number(A):2~9 points setting. sampling times each
point:(L)2~9 times setting measuring position:0-999 | 
| UCL statement | Confirm to the standards ISO14644-1,GB50073-2001, GMP,FS-209E | 
| Data storage | Can storage 1000 sets data(recycle buffer)( including grain size,
data, environment data, year, month, day, time, sampling quantity,
data connector), the data will not lose if power failure. | 
| Communication connector | RS232,9600Baud rate | 
| Alarm setting | can alarm for level 100, level 1000, level 10000, level 100000,
level 300000, level 1000000 if over the standard alarm for low
battery and voltage. | 
| Zero count | Can meet the requirement of Dust particle counter regulation
requirement JJG-547-88 JIS B9921:1997 less than 1 each 5 minutes | 
| Over lapping error | 5 %,2,000,000 grain/c.f. | 
| Printer | External printer(Option) | 
| Dimension | 230×130×45(mm) | 
| Weight | 0.6kg | 
| Standard configuration | Suitcase/charger,power sampling head,zero filter,RS 232 connecting
line,disc for computer connect. | 
| Option | External printer, professional triangle sampling frame, temperature
and humidity sensor. |