EXTECH VPC300 内置摄像头视频粒子计数器（6通道）

Particle Size Channels: 0.3, 0.5, 1.0, 2.5, 5.0, 10µm

Flow Rate: 0.1ft3 (2.83L/min) controlled by internal pump

Count Modes: Cumulative, Differential, Concentration

Counting Effeciency: 50% @ 0.3µm; 100% for particles>0.45

Coincidence Loss: 5% @ 2,000,000 particles per ft3

Air Temperature: -14 to 140ºF (-25 to 60ºC); Accuracy:±2ºF/1ºC

Relative Humidity: 0 to 100%RH; Accuracy:±3%RH (40% to 60%RH)

Dew Point / Wet Bulb: 32 to 122ºF (0 to 50ºC)

Dimensions: 9.4 x 3 x 2.2" (240 x 75 x 57mm) 

Weight: 1.26lbs (570g)

Simultaneously measure and display 6 channels of particle sizes (down to 0.3µm), Air Temperature, Humidity, Dew Point and Wet Bulb

2.8" TFT Color LCD display

Built-in 320x240-pixel camera takes videos (3GP) and photo images (JPEG) and records them in internal 74MB memory

Store 5000 records (date, time, counts, humidity, temperature, sample volumes, and location label) and 20 minutes of video

Selectable sample time, count data, and programmable delay

Max, Min, DIF, AVG record, Date/time setup controls, Auto Power Off

Mini-USB port connection

Complete with NIST-traceable calibration certificate, Universal AC Adapter/Charger with multiple plugs, USB cable, PC software, tripod, filter, 7.4V NiMH battery and hard case