
USB OUTPUT 
PRESSURE TRANSDUCER
CONNECT DIRECTLY TO YOUR COMPUTER
Gage and Absolute Pressures 
10 inH2O to 5000 psi 
(25 mb to 345 bar) 
Vacuum and Compound Ranges 
10 inH2O to 15 psi 
Barometric Ranges
PX409 USB Series
Free Software 
Included!
PX409-015VUSB 
shown actual size.
Cable style.
Standard
U Micro-Machined Silicon Sensor 
U 316L SS Wetted Parts 
U High ±0.08% Accuracy Typ. (0.14% Max) 
U Fast Delivery! Stock to 1-Week 
on Most Models
U Excellent Long Term Stability 
U USB 2.0 and Below Compatible 
U Standard USB Connector Termination 
U Shock and Vibration Rated 
U Ruggedized with Secondary Containment
The PX409 USB Series connects directly to your 
computer. Free software makes data logging and 
charting your readings a simple task. Also included 
are drivers for popular laboratory programs plus 
some web applications. The micro-machined silicon 
design are ideal for pressure or level applications 
in laboratory, test platforms, or bio/pharmaceutical 
applications as well as industrial applications that 
require a rugged, high accuracy transducer. The 
micro-machined silicon sensor provides a very stable 
transducer with exceptional high accuracy of ±0.08% 
typical and a broad compensated range of -29 to 85°C 
(-20 to 185°F). The modular construction allows for fast 
delivery of most configurations and fittings. Delivery is 
typically stock to 1 week!
SPECIFICATIONS
Accuracy: 0.08% BSL typical (linearity, hysteresis 
and repeatability combined) (0.14% BSL max) 
Temperature Compensation (Over Compensated Range): 
 Span: Range > 5 psi: ±0.5% 
      Range ≤ 5 psi: ±1.0% 
 Zero: Range > 5 psi: ±0.5% 
       Range ≤ 5 psi: ±1.0% 
Minimum Isolation Between Case and Output Terminations: 
100 MΩ @ 50 Vdc
Pressure Cycles: 1 million, minimum 
Long Term Stability (1-Year): ±0.1% FS typical 
A to D Conversion: 14-bit 
Shock: 50 g, 11 mS half sine, vertical and horizontal axis
Metric thread 
adaptors available, 
visit omega.com/
mta_brlk
2 m (6') integral 
USB cable connects 
directly to your PC.
FREE SOFTWARE INCLUDED!
Each unit includes free 
software that converts 
your PC into a strip chart 
recorder or data logger 
so readings can be 
saved and later printed 
or exported to a spread 
sheet file. Also included 
are software drivers for 
some of the most popular 
Laboratory programs.
Vibration: 5-2000-5 Hz, 30 minute cycle, Curve L, Mil-Spec 
810 figure 514-2-2, vertical and horizontal axis 
Bandwidth: DC to 3 Hz typical 
CE Compliant: Meets industrial emissions and 
immunity EN61326
Environmental Protection: IP65 
Secondary Containment Vacuum and Pressure: 
 10 inH 
 15 to 1000 psi: to 3000 psi 
 1500 to 5000 psi: to 15,000 psi 
Secondary Containment Absolute Pressure: 
 5 to 1000 psi: to 6000 psi 
 1500 to 5000 psi: to 15,000 psi 
Wetted Parts: 316L SS 
Weight: 200 g (7 oz) 
Overpressure Gage Pressure: 
 10 inH2O: 10 times span 
 1 psi: 6 times span
 2.5 psi to 3500 psi: 4 times span 
 5000 psi: 15,000 psi max 
Overpressure Absolute Pressure: 
 5 psia: 6 times span 
 15 psia to 3500 psia: 4 times span 
 5000 psia: 15000 psi max 
Operating Temperature Range: -40 to 85°C (-40 to 185°F) 
Compensated Temperature: 
 Ranges >5 psi: -29 to 85°C (-20 to 185°F) 
 Ranges ≤5 psi: -17 to 85°C (0 to 185°F)
O to 5 psi: to 1000 psi
2
B-7
 

USB OUTPUT PRESSURE TRANSDUCER
Product Label
P/N A040066
¼—18 NPT
Pressure Adaptor
HEX 1.0 AF
PX409 USB Series Pressure Ranges 15 PSIA/PSIG and Below
HEX 0.87 AF
¼—18 NPT
Pressure Adaptor
104 (4.1)
Gage
Vent
2 m (6')
Ø 22 (0.88)
8 (0.3)
Free Software 
Included!
PRESSURE TRANSDUCERS
PX409 USB Series Pressure Ranges 30 to 1000 PSIA/PSIG
HEX 0.87 AF
¼—18 NPT
Adaptor
PX409 USB Series Pressure Ranges Above 1000 PSIA/PSIG
104 (4.1)
119 (4.7)
8 (0.3)
8 (0.3)
Dimensions: 
mm (inch)
Laptop not included.
 To Order Visit omega.com/px409-usb for Pricing and Details
             RANGE/RESOLUTION 
        psi       bar  MODEL NO.  MODEL NO. 
 GAGE PRESSURE
 0 to 10.00 inH
O  0 to 25.00 mb  PX409-10WGUSB           —
2
 0 to 1.000  0 to 69.00 mb  PX409-001GUSB           — 
 0 to 2.500  0 to 172.0 mb  PX409-2.5GUSB           — 
 0 to 5.000  0 to 345.0 mb  PX409-005GUSB           — 
 0 to 15.00  0 to 1.000  PX409-015GUSB PX409-015AUSB 
 0 to 30.00  0 to 2.100  PX409-030GUSB PX409-030AUSB 
 0 to 50.00  0 to 3.400  PX409-050GUSB PX409-050AUSB 
 0 to 100.0  0 to 6.900  PX409-100GUSB PX409-100AUSB 
 0 to 150.0  0 to 10.30  PX409-150GUSB PX409-150AUSB 
 0 to 250.0  0 to 17.20  PX409-250GUSB PX409-250AUSB 
 0 to 500.0  0 to 34.50  PX409-500GUSB PX409-500AUSB 
 0 to 750.0  0 to 51.70  PX409-600GUSB PX409-600AUSB 
 0 to 1000  0 to 69.00  PX409-1.0KGUSB PX409-1.0KAUSB 
 0 to 1500  0 to 103.0  PX409-1.5KGUSB PX409-1.5KAUSB 
 0 to 2500  0 to 172.0  PX409-2.5KGUSB PX409-2.5KAUSB 
 0 to 3500  0 to 241.0  PX409-3.5KGUSB PX409-3.5KAUSB 
 0 to 5000  0 to 345.0  PX409-5.0KGUSB PX409-5.0KAUSB
 VACUUM RANGES (NEGATIVE GAGE PRESSURE)
 0 to -10.00 inH
O  0 to -25.00 mb  PX409-10WVUSB           —
2
 0 to -1.00 psi  0 to -69.00 mb  PX409-001VUSB           — 
 0 to -2.500 psi  0 to -172.0 mb  PX409-2.5VUSB           — 
 0 to -5.00 psi  0 to -345.0 mb  PX409-005VUSB           — 
 0 to -15.00 psi  0 to -1.000  PX409-015VUSB           —
 COMPOUND GAGE RANGES
 ± 10.00 inH
O  ± 25.00 mb  PX409-10WCGUSB           —
2
 ± 1.000 psi  ± 69.00 mb  PX409-001CGUSB           — 
 ± 2.500 psi  ± 172.0 mb  PX409-2.5CGUSB           — 
 ± 5.000 psi  ± 345.0 mb  PX409-005CGUSB           — 
 ± 15.00 psi  ± 1.000  PX409-015CGUSB           —
 BAROMETRIC RANGES (ABSOLUTE PRESSURE) 
 0 to 32.00 inHg  0 to 1100 mb         — PX409-32BUSB
 16.00 to 32.00 inHg  550.0 to 1100 mb         — PX409-16BUSB
 26.00 to 32.00 inHg  880.0 to 1100 mb         — PX409-26BUSB
Comes complete with 5-point NIST traceable calibration certificate, CD with charting and graphic software plus drivers.
Ordering Examples: PX409-100GUSB, 2 m (6') cable with USB termination, 100 psig range, USB output. 
PX409-16BUSB, 2 m (6') cable with USB termination, 16 to 32 inHg absolute barometric range, USB output.
GAGE PRESSURE  ABSOLUTE PRESSURE
B-8
USB OUTPUT
B