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US$71.99

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PM2.5 Detector Digital Air Quality Tester Laser Temperature Humidity Meter

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                  Descriptions:
                   
                   ♦The PM2.5 monitor is a monitor for detecting the quality of particles in the atmosphere that are less than or equal to 2.5關m of fine particulate matter. Compared with the coarser atmospheric particles, PM2.5 particles have small diameter, large area and strong activity, which are easily associated with toxic and harmful substances (e.g., heavy metals and microorganisms), and long residence time in the atmosphere, conveying distance, and thus the impact on human health and environmental quality of the atmosphere more. 
                   ♦This instrument uses the principle of laser scattering. Let the scattering laser irradiation suspended particles in the air. At the same time, to collect scattered light at a particular point of view, get the scattering intensity versus time curve. Then the equivalent particle size of particles and the number of particles of different sizes in unit volume are obtained.
                   
                  Using Instructions:
                  -PM2.5 Measurement
                  Press power switch to turn on power. Wait for 8 seconds to enter measuring interface. The screen displays the PM2.5 reading value, and the two color LED indicator on the screen shows the current level of air pollution. Green is good, yellow is worse, red is bad.
                   
                  Features:
                   
                  -Alarm
                  1.Alarm switch Each boot, the alarm function is turned on by default. Press Alarm switch to turn off alarm ,then the red light goes out; Press Alarm switch again, The alarm function is turned on, then the red light lights.
                  2.2.Set alarm value
                  The alarm value is set at 115μg/m³, you can set it by
                  yourself. (Range: 0~500μg/m³)
                  1) In normal measurement, long press Alarm switch to enter the
                  alarm setting, then the screen displays the current alarm
                  value and the red light flashes;
                  2) Adjust the alarm value size through the up/down button.
                  3) Press to Alarm switch save the alarm value, or press to
                  Power on/off return the measurement state.
                  Attention: press Alarm switch enter date setting, press Power on/off
                  back to measurement state.
                  3.Alarm function (Sound & Display) When the measuring value of the instrument exceeds the set alarm value, the instrument sends out the alarm sound of Di Di Di Di…, and locks the measuring data and flashes the measuring value. Instrument alarm duration of 2 minutes, After 2 minutes, or press any button ,the instrument stops the alarm sound, the screen does not blink, but still lock data. Normal measurements are resumed after 5 seconds.
                   
                  -Data Records
                  The instrument automatically every 4 seconds a data storage, The stored value is the maximum PM2.5 value in 4s. The instrument can be stored continuously for a year, a year after the instrument automatically cleared six months before the data, the user can through the computer software transfer out record.
                   
                  -Connecting
                  The instrument provides computer applications that can communicate with the computer via USB, download records, sample in real-time, print charts and data, and so on

                  Specification:
                   
                  Measuring range: 0-500ug/m3
                  Consistency: ±10%@100~500μg/m³; ±10μg/m³@0~100μg/m³
                  Response time of once: <1s
                  General response time: ≤10s
                  Resolution ratio:1μg/m³ S
                  Particle count efficiency : 50%@0.3μm 98%@≥0.5μm
                  Sensor: Laser
                  Working life :≥3years
                  Record: 4s/time, can be kept for 1 year
                  Communication: Connecting PC with USB cable
                  Power supply: DC5V 1A Micro USB
                  Alarm reminder: Sound & Display
                  Alarm output: Yes
                  Two color LED:Yes
                  Operating conditions: -10 ~ +60℃ 20% ~ 80%RH
                  Storage conditions : -40 ~ 80℃ 20% ~ 70%RH
                  Size: 210x130x28mm
                  Weight: 453g

                  Package includes:
                   
                  1 x Wall-mounted PM2.5 Monitor
                  1 x USB cable
                  1 x User manual

                  Detail pictures:
                   

                   









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