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621 Dual Input Manometer
621 Dual Input Manometer
621 Dual Input Differential Manometer
621 Dual Input Differential Manometer
720b621-Kit Tightness Test Kit comprising of 720b & 621 in A901 carry case
621 Dual Input Differential Manometer

621 Dual Input Digital Manometer (2 Decimal Place Resolution) c/w Rubber Boot


Dual Differential Input Manometer with ±120 inH2O range and 0.001 in H2O resolution. Seven units of pressure: inH2O, mbar, KPa, PSI, mmH2O, mmHg, inHg, Auto power off, Backlight display, Zero function, Trim mode to stabilize readings.

In stock

SKU: 621 Category: Tags: , , ,


The TPI 621 is a hand held pressure meter with superior resolution.

  • Dual input with +/-120” H2O range
  • 0.001” H2O maximum resolution
  • Seven units of measure (mbar, kPa, PSI, mmHg, inHg, mmH2O, inH2O)
  • Display – 4 digit with backlight
  • Smooth – Stabilizes display when measuring fluctuating pressures
  • Auto Off: Conserve battery power


Product Documentationpdf-icon1

Click below to view or download product documentation PDFs:

621 Manual

621 Data Sheet (UK)



 Model 621 Specifications
 Measurement Range±120” H2O
 Display5 Digit LCD with backlight
 Input TypeDual Differential (1/4” Barbed)
 Resolution (max)0.01” H2O
 Accuracy+/-(0.5% of reading + 5 digits)
 FunctionsOne Touch Zero, Back-light, Smoothing
 Units of Measure1 Unit (inH2O)
 Battery Type9V Alkaline
 Battery Life80 hours (Typical)
 Auto Power Off40 minutes
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