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Hand-held Particle Counters KR-11A/KR-11B For everywhere everyday everyone 0.3µm （KR-11A）, 0.5µm （KR-11B）, 2.83liter/min

· Easy-to-read display panel and simple controls

· Two particle size channels （KR-11A: 0.3, 0.5µm, KR-11B: 0.5, 5.0µm）

· Runs for up to 8 hours on internal rechargeable battery （charge time 2.5 hours）

· Rotating internal buffer for up to 100 measurement data

· Data can be downloaded to a computer

Specification

Optical system	90° sideway light-scattering method
Light source	Laser diode
Size ranges	2 channels （KR-11A: 0.3, 0.5µm, KR-11B: 0.5, 5.0µm）
Flow rate	2.83 liter/min
Concentration	KR-11A?F70 000particles/liter （Coincidence loss 5% for particles of 0.3µm） KR-11B?F70 000particles/liter （Coincidence loss 5% for particles of 0.µm）
I/O	Serial Interface
Power requirements	Internal battery or AC adapter Battery: Nickel metal hydride （Ni-MH） Continuous operation approx. 8 hours, can be charged with supplied AC adapter （charge time 2.5 hours） AC adapter: Input voltage range, 90 to 264 VAC, 50/60 Hz
Dimensions and Weight	Approx. 116（W） X 211（H） X 65（D）mm （excluding protruding parts）, approx. 1 kg

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