How much is your old dust monitor worth?

Trade it in for money off a TSI AM520 / AM520i Personal Dust Monitor! Do you have an old dust monitor which is, well... gathering dust? Whatever the manufacturer or condition, you can now trade in your old dust monitor against the new TSI AM520 or AM520i Personal Dust Monitor. Why upgrade to a TSI AM520 or AM520i? Intrinsically Safe model available New impactors for measuring 0.8µm Diesel Particulate Matter (DPM) and PM5 (China Respirable) Also measures PM10, PM4, PM2.5 and PM1 Audible and visual alarms 0.001 to 100 mg/m3 concentration range Up to 20 hours battery life Real-time reporting + data logging

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