This instrument is capable of measuring positive and negative differential pressure values, offering the following selectable measurement units: inH2O, psi, bar, mbar, kPa, inHg, mmHg, ozin2, ftH2O, cmH2O, kgcm2. Equipped with a simple hose connection device, it is suitable for measurements and on-site verification in ventilation and air conditioning systems, clean rooms, or for troubleshooting any gas pressure systems. With its convenient operation and clear readings, it serves as an indispensable testing tool for HVAC technicians, operation and maintenance engineers, and scientific researchers.
Shenzhen FLUS Technology Co., Ltd.
InquiryEnvironment conditions
1) Relative humidity ≤ 90%RH (non-condensing)
2) Operating temperature: -0 to 40℃
Accessories
① Instruction manual
② Canvas bag
③ AAA 9V battery
④ 4.5mm metal air nozzle, 2 pieces
⑤ 2 pieces of 5.0mm*30mm soft rubber hose
⑥ 2 pieces of 5.0mm*30mm hard rubber hose
Specifications
unit |
ET-920 |
ET-921 |
ET-922 |
|||
range |
resolution |
range |
resolution |
range |
resolution |
|
inH2O |
±55.40 |
0.01 |
±138 |
0.1 |
±415.2 |
0.1 |
Psi |
±2.000 |
0.001 |
±5.000 |
0.001 |
±15.00 |
0.01 |
Mbar |
±137.8 |
0.1 |
±344.7 |
0.1 |
±1034 |
1 |
KPa |
±13.79 |
0.01 |
±34.47 |
0.01 |
±103.4 |
0.1 |
inHg |
±0.407 |
0.001 |
±1.018 |
0.001 |
±30.54 |
0.01 |
mmHg |
±103.4 |
0.1 |
±258.5 |
0.1 |
±775.7 |
0.1 |
ozin² |
±32.00 |
0..01 |
±80 |
1 |
±240.0 |
0.1 |
ftH2O |
±4.612 |
0.001 |
±11.53 |
0.01 |
±34.60 |
0.01 |
cmH2O |
±140.6 |
0.1 |
±351.5 |
0.1 |
±1055 |
1 |
kgcm² |
±0.140 |
0.001 |
±0.351 |
0.001 |
±1.055 |
0.001 |
bar |
±0.137 |
0.001 |
±0.344 |
0.001 |
±1.034 |
0.001 |
Maximum Pressure |
10 psi |
20 psi |
100 psi |
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Accuracy |
±0.3%FS |
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Linearity/Hysteresis |
±0.1%FS |
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Repeatability |
±0.25%FS |
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Input ports |
Two metal 4.5mm barbed for 1/8〞（3.18mm）ID tubing |
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Working temperature |
0～40℃/32～104℉ |
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Storage temperature |
-10～60℃/14～140℉ |
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Overrange indication |
ERR1 or ERR2 |
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Power supply |
9V battery |
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