407495-NIST / Extech Heavy Duty Digital Differential Pressure Manometer Extech 407495-NIST - NIST Calibration Certificate - Heavy Duty Pressure Meter features: Meter stores range and calibration data for six pressure ...
CEM-111 CEM เครื่องวัดความดันอากาศ Digital Manometer Differential Air Pressure Meter สามารถวัดความดันบรรยากาศได้ มีช่วงวัด ±13.79 kPa / ±2 psi / ±55.4 H2O
HD700-NIST / Extech Differential Pressure Manometer - 2PSI with NIST.Max/Min/average recording and Relative time stamp.Data Hold, Auto power off and Zero function.
HD750-NIST / Extech Differential Pressure Manometer - 5PSI with NIST.Max/Min/average recording and Relative time stamp.Data Hold, Auto power off and Zero function.