Hand Held Digital Manometer

The Popular Hand held Digital Manometer is now available with 0.1%full scale accuracy in the new Series 477A. The 477A contains a highly accurate differential pressure sensor that offers a 0.1%full scale accuracy on air ranges from 20 ? w..c.to 100 paid. Series 477A Digital Manometers are packed with features needed to make pressure measurement and recording faster,easier and more accurate than ever.Instantly select from up to nine of the most widely used pressure units without having to waste time and risk mistakes with tedious conversions.A non-volatile memory function enables storage of up to 40 readings a per-fect for HVAC technicians making Pitot tube traverses of airflow readings across a duct.The 477A is also ideal for maintenance personnel or technicians that require a highly accurate standard to check their instrumentation or equipment to ensure proper performance.

When working in poorly lighted areas,just switch on the handy back-light feature.The manometer automatically shuts itself off after 20minutes to minimize battery drain.Electronic zeroing means you simply touch a single key to perfectly null out any minor pressure differences. A display HOLD key freezes the current pressure for those all-too-common situations where readings fluctuate.