Digital portable indicators for the difference between two pressures. Can also be used for single pressure.

Series 477A
Handheld Digital Manometer

Precise Air Pressure Measurement, ±0.1% F.S. Accuracy
Series 475
Mark III Handheld Digital Manometer

Ranges from 1" w.c. to 150 psid, ±0.5% Accuracy
Series 477
Handheld Digital Manometer

Selectable Pressure Units, ±0.5% Accuracy, FM Approved Intrinsically Safe for Hazardous Locations, Class 1, Div. 1, Group A, B, C, D, T4
Series 490
Wet/Wet Handheld Digital Manometer

Liquid & Gas Pressure Measurement, ±0.5% F.S. Accuracy
Series HM28
Handheld Digital Manometer

High Accuracy (0.2%, 0.1% or 0.05%), Differential, Gage or Absolute
Series 476A & 478A
Digital Manometer

Single & Dual Pressure Measurement, Electronic Zeroing, ±1.5% Accuracy
Series HM35
Precision Digital Pressure Manometer

Up to 0.05% Accuracy, Graphical Display, Data Logging Capability