II.Product specification PM2.5 air quality detection: PM2.5 Pm10 Range: (01000ug/m3 ) Concentration unit: ug/cubic meter (ug/m3) Detection sensitivity: 1ug Measurement error: < 20% Three-channel dust particle counter: 0.3um 2.5um 10um Flowrate: 1L/min Concentration unit: piece/L Sampling method: pumping Sampling principle: light scattering Light source: laser diode Detection method: manual Automatic power-off function: it will power off automatically if there is no operation within 2 minutes at power-on state. Environmental condition:
Application environment: temperature scope: 545
Humidity range:90RH)
Storage environment: temperature scope: -2060
Humidity range:90RH)
Sampling time: 50s
Resolution ratio of sensor: 1ug/m3
Storage record: 1000 groups of data
Temperature measurement range: -40+125 Precision 0.5
Humidity measurement range: 0-100RH Precision 2RH
Screen size: 2.8
Display screen: 2.8320*240 LCD color back light
Power supply:
1. Adaptor: 100-240VAC 50/60H output; DC9V=500mA (the connection is used for charging and should be used at power-off state). 2. Connection of USB port line 3. 7.4V Rechargeable lithium battery/1100mAh (the battery cannot be dismantled at will. Please contact the manufacturer is it needs to dismantle the lithium battery). Work time of the battery: the time for continuous test is longer than 3 hours. Display of remaining energy: three-grid battery electricity display (it needs to charge if one grid of electricity is left. The charging should be made before the battery electricity displays red. This will result in reducing service life and capacity of the battery). The electricity is tested