Dwyer Series 477 Handheld Digital Manometer Light Meters thereby obtaining an accurate and

thereby obtaining an accurate and representative water sample to the milligram per liter (mg/L) level

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Hold All Readings function

Long-Life Battery: Rechargeable Li-ion battery delivers 8–10 hours of continuous operation

Dwyer Series 477 Handheld Digital Manometer Light Meters thereby obtaining an accurate andSeries 477 Handheld Digital Manometers are packed with features you need to make low pressure measurement and recording faster, easier and more accurate than ever. First, you can instantly select from up to nine of the most widely used pressure units without having to waste time and risk mistakes with tedious conversions. Next, a non volatile memory function enables storage of up to 40 readings perfect for HVAC technicians making Pitot tube traverses