Measuring sensitivity: LD- 5C（L） 1 CPM = 0.01 mg/m3;
LD- 5C（H） 1 CPM = 0.001 mg/m3.
Measuring range: LD- 5C（L） 0.01 ~ 100 mg/m3;
LD-5C（H） 0.001~10 mg/m3.
Measuring time interval: standard time 1 minute. 0.1 minute and manual timing also delivered. Manual timing can set sampling time from 1 to 9999.
Measuring accuracy: ±10%.
Display screen: character LCD
Continuous monitoring: setting measuring time （1 ~ 9999） seconds, waiting time （0 ~ 9999） seconds, sampling number（1 ~ 9999） times
Data Storage:
General measurement: cycle 99 data storage （each group including : quality concentration, measure date, time, recording sequence number）
Labor Hygiene: cycle 30 data storage （each group including : sampling date, starting time of sampling, using K value, measurement cycle, TWA value, S value, recording sequence numbers）, and measurement data of dust concentrations every minute in "Labor hygiene" model （CPM）, 1440 data stored （24 hours） -- read through PC.
Continuous monitoring: maximum storage 9999 data -- read through PC
Alarm mode: set threshold concentration, voice alarm exceeding it
Output interfaces:
Serial interface for PC communication: RS 232;
Power supply: Ni – MH rechargeable batteries group （1.2 V ´ 6）, capacity for 8 hours, 220 V AC / 12 V DC adapter also provided.
Dimensions: 200×109×135mm
Weight: 2 kg .
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