Dwyer Series 477 Handheld Digital Manometer High Volume Air Samplers Capture your information directly to

Capture your information directly to the onboard SD card and generate characters to document all information

MSI™ confirms when a reading is stable by turning the thickness measurement numbers from red to yellow

Recalibration prompts

Electronic zeroing means you simply touch a single key to perfectly null out any minor pressure differences

The AutoRAE Lite provides the lowest cost of ownership

Dwyer Series 477 Handheld Digital Manometer High Volume Air Samplers Capture your information directly toSeries 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