CEM DT-9881 6ch Air Particle Counter Temperature Humidity HCHO CO Gas Detecter

Description

This is a used CEM DT-9881 Particle counter.  Only comes with Unit and charger. Please Note: This unit only works plugged into the wall, it needs a new battery as it will not hold it's charge.  You will have to get a new battery from the manufacturer if you want to use this not plugged in.
Features
2.8" color TFT LCD display
320 x 240 display resolution
Image (*.JPEG) and video capture (*.3GP)
One microSD slot (up to 8GB)
Simultaneously measure and display 6 different particle sizes
HCHO and CO detector
Air temperature and humidity measurement
MAX, MIN, DIFF, AVE record, Date / time setup control
Auto power off
Specification
Particle Counter
Channels
0.3, 0.5, 1.0, 2.5, 5.0 um
Flow Rate
0.1 cu-ft/min (2.83 L/min)
Counting Efficiency
50% at 0.3um ; 100% for particle  >  0.45 um
Coincidence Loss
5% at 2,000,000 particles per cubic-foot
Data Storage
up to 5000 sample records on the SD card (not included)
Count Modes
Cumulative, Differential and Concentration
HCHO measurement
Range
0.01 to 5.00 ppm
Basic accuracy
+/- 5%
Display Resolution
0.01 ppm
CO measurement
Range
10 to 1000 ppm
Basic accuracy
+/- 5%
Display Resolution
1 ppm
Air Temperature and Relative Humidity Measurement
Air Temperature Range
0 deg C to 50 deg C (32 deg F to 122 deg F)
Dewpoint Temperature Range
0 deg C to 50 deg C (32 deg F to 122 deg F)
Relative Humidity Range
0 to 100% RH
Air Temperature Accuracy
10 deg C to 40 deg C: +/- 0.5 deg C (0.9 deg F)
other: +/- 1 deg C (1.8 deg F)
Dewpoint Temperature Accuracy
10 deg C to 40 deg C: +/- 0.5 deg C (0.9 deg F)
other: +/- 1 deg C (1.8 deg F)
Relative Humidity Temperature Accuracy
40% to 60%: +/- 3%RH
20% to 40% and 60% to 80%: +/- 3.5%RH
0% to 20% and 80% to 100%: +/- 5%RH
Operating Temperature
0 deg C to 50 deg C (32 deg F to 122 deg F)
Storage Temperature
-10 deg C to 60 deg C (14 deg F to 140 deg F)
Relative Humidity
10 to 90% RH non-condensing
Display
2.8" 320x240 Color LCD with backlight
Power
Battery
Rechargeable battery
Battery Life
About 4 hours continuous use
Battery Charge Time
About 2 hours with AC adapter
Size:
240mm x 75mm x 57mm
Weight:
570g (1.3 lb)
Accessories:
NiMH battery, Gift box with carrying case
This is a USED CEM DT-9881
certified digital 4 in 1 Particle Counter with Color TFT LCD display from Ruby Electronics.  This instrument allows the capture of images (JPEG) and videos (3GP) onto a microSD card (up to 8GB, not included) which can be viewed on your PC at a later time.
DT-9881 detects HCHO and CO concentration in addition to the count of air particles varies from 0.3 to 10 um in size.  It also measures air temperature, dewpoint temperature and relative humidity.
The measurement results can be recorded onto the microSD card (up to 8GB, not included) which can be transferred onto a PC for final analysis.