ET-921 Air Quality Monitoring System Device Measuring Air Pollution Meter

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.

Description

Shenzhen FLUS Technology Co., Ltd.

86-755-8968812

[email protected]

Livia:+86 15920088094

Melanie:+86 13510684028

Description

Environment 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
unit	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
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