Features: 1 .2.8" TFT 320x240 pixels Color LCD display 2. Images(JPEG) & Video(3GP) 3. Simultaneously measure and display 3 channel of particle sizes, measure particle size down to 0.3 µm 4. The determination of suspended particle concentration in the air of the weight method (PM2.5/PM10) 5. GAS (HCHO) detectors 6. Air temperature and humidity, Dewpoint & Wet bulb temperature 7. Max, Min, DIF, AVG record, Date/time setup controls, alarm 8. MicroSD (MAX. use 8GB) (Not included )memory card, USB interface Specifications: Particle Counter: Channel 0.3, 2.5,10μm Flow Rate 0.1ft 3 (2.83L/min) controlled by internal pump Count Modes Totalize, Concentration, Audio Coincidence Loss 5%, 2,000,000 particles(pc) per ft⊃3; Particle Mass:Mass Concentration Channel 0~2000ug/m⊃3; Display Resolution 1ug/m⊃3; Air Temperature Measure: Air Temp Range 0 to 50ºC/32 to 122ºF; Basic Accuracy: ±1ºC/1.9ºF Humidity Range 0 to 100%RH; Basic Accuracy: ±2.5%RH (20%~80%RH) Dew Point Temp. Range -30~100ºC/ -22~199ºF Wet Bulb Temp. Range 0~80ºC/ 32~176ºF GAS Detectors: HCHO (methanal) Range 0.01~5.00ppm; Basic Accuracy: ±5%+-0.01ppm(only DT-9851M)Standard Accessory:Particle Counter * 1(DT-9850M), User's Guide * 1, 7.5V Lithium Battery * 1, USB Data Cable * 1,Power Charger * 1,Color Box * 1,tripod*1,Air filter tube*1
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