Dual Input Differential Input Manometer - TPI 621Dual Input Differential Input Manometer - TPI 621
Dual Input Differential Input Manometer - TPI 621
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Dual Differential Input Manometer with ±120 in H2O 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 stabilise readings


  • 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

Technical Specifications


Measurement Range

±120” H2O


5 Digit LCD with backlight

Input Type

Dual Differential (1/4” Barbed)


0.01” H2O


+/-(0.5% of reading + 5 digits)


One Touch Zero, Back-light, Smoothing

Units of Measure

1 Unit (inH2O)

Battery Type

9V alkaline

Battery Life

80 hours (Typical)

Auto Power Off

40 minutes

Accessories (Included)

9V Alkaline battery (A009A)


Please click the link below to download the Technical Manual for this product

TPI 621


TPI Single Input Manometer - 608

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