HD755-NIST / Extech Differential Pressure Manometer, 0.5PSI,includes Traceable Certificate.Measure gauge or differential pressures from 0 to 0.5 psi in 11 selectable units of measure.
Testo-512-1 / Testo เครื่องวัดความดันต่าง Differential Pressure Testo 512-1 Differential Pressure Meter Can display the pressure and flow rate simultaneously With a large, bright screen Easy to read In addition, the ...
SDL700-NIST / Extech Pressure Meter SD Logger with NIST Accepts interchangeable transducers with ranges of 30, 150, 300psi (transducers sold separately).