1.Introduction
This product is designed to measure differential pressure (the difference between two pressure measurements). It offers 11 units of measure(user selectable): inH2O, psi, bar, mbar, kPa, inHg, mmHg, ozin2, , ftH2O, cmH2O, kgcm2 and has a differential input that uses convenient quick-disconect fittings.
it is perfect for HVAC technician, operation maintenance engineers and researchers. as well as those in the pneumatic and medical fields.
2.Accessories
① User Manual
② Carry Pouch
③ One “6F22”9V battery
④ 2pcs of ∮4.5mm metal barbed for tubing
⑤ 2pcs of ∮5.0mm*30mm soft tubing
⑥ 2pcs of ∮5.0mm*30mm hard tubing
| unit | ET-923 | ET-925 | ||
| range | resolution | range | resolution | |
| inH2O | ±830 | 1 | ±2078 | 1 |
| Psi | ±30.00 | 0.01 | ±75.00 | 0.01 |
| Mbar | ±2608 | 1 | ±5168 | 1 |
| KPa | ±206.8 | 0.1 | ±517.1 | 0.1 |
| inHg | ±61.08 | 0.01 | ±15.00 | 0.01 |
| mmHg | ±1551 | 1 | ±3878 | 1 |
| ozin² | ±480.0 | 0.1 | ±1200 | 0.1 |
| ftH2O | ±69.2 | 0.01 | ±173.0 | 0.01 |
| cmH2O | ±2109 | 1 | ±5272 | 1 |
| kgcm² | ±2.109 | 0.001 | ±5.250 | 0.001 |
| bar | ±2.068 | 0.001 | ±5.138 | 0.001 |
| Maximum Pressure | 100 psi | 100 psi | ||
| Accuracy | ±0.3%FS | |||
| Linearity/Hysteresis | ±0.1%FS | |||
| Repeatability | ±0.25%FS | |||
| Input ports | Two metal 4.5mm barbed for 1/8〞（3.18mm）ID tubing | |||
| Working temperature | 0～40℃/32～104℉ | |||
| Storage temperature | -10～60℃/14～140℉ | |||
| Overrange indication | ERR1 or ERR2 | |||
| Power supply | 9V battery | |||
