Model Number: DLY-71 Air Ion Counter Brand Name: KILTER Key Specifications/Special Features: This air ion mobility spectrometer can be used to monitor the particulate matter in the atmosphereIt is more effectively in measuring the tiny particulate matter than PM 2.5Specifications:Ion concentration:10ions/cm-6,000x104ions/cm32Resolution:10ions/cm

Ionmobility:

• Smallion: 0.4cm/v·sec
• Intermediateion: 0.04-0.4cm/v·sec
• Largeion: 0.001-0.04cm/v·sec

Ionpolarity:positiveornegative

Flowspeed: 40cm/second

Accuracy:±10%

Powersupply:DC14.4vorAC90-250V, 50 or60Hz

Workingenvironment:

• Temperature: -20-50°C
• Humility:≤99%R.H

Software:

• Measuretimeinterval:15 minutes, 30mins
• Autochangeionpolarity
• Measurelargeintermediate,smallion
• Recordingthetestresultcontinuously