P350 Pressure Sensors

Connect directly to any XR440 or XR5-SE data logger; no external power required.

P350 Differential Air Pressure Sensor for Pace Data Loggers

P350-D-0.1-inch Pressure Sensor (±0.1 inches H2O)

Applications include Lab/Clean Room Pressurization, Filter Pressure, Fan Static Pressure.

Compatible pressure media: dry air and inert gases: nitrogen, helium, neon, argon, krypton, xenon.

  • Pressure range as low as ±0.1 inch H2O (+/-25 pascals)
  • Very low power
  • High accuracy

P350 Specifications

Total Error Band 2% of span from 5 to 45°C (41°F to 113°F)
Operating Temperature Range:

-20°C to 60°C (-4°F to 140°F)

Storage Temperature Range:

-20°C to 70°C (-4°F to 158°F)

Resolution: See table below
Supply Voltage 4.75 to 5.25 Vdc
Power requirement: 2 ma at 5 Vdc (supplied by Pace data logger)
Output signal

0.5 to 4.5 Vdc at 5Vdc supply voltage.

Output is ratiometric to supply voltage.


White: E terminal of Pace logger (Power)

Green: Analog Input of Pace Logger (Signal)

Black: "C" terminal of Pace logger (Ground)

Proof Pressure:* 7.5 psi
Weight: 1.3 oz. (37 grams)
Physical: Thermoplastic housing with three twisted leads, 24 AWG, 18" length.
Pressure Port: Port accepts 3/32" I.D. tubing (or 2.4 mm I.D. tubing).  Accepts 1/8" I.D. tubing (or 3.2 mm I.D. tubing) with included adapter (details below).
Mounting: Two mounting slots on base, spaced 3.46" (87.8 mm) center to center.  Slots are 0.138" x 0.6" (3.5 x 15 mm)
Overall Size: 3.79" x 1.58" x 0.88" (97 x 40 x 22 mm)

* Exceeding Proof Pressure can result in sensor failure.

Included Adapters

Allows pressure connections to commonly available 1/8" I.D. tubing.  Consists of two 8" lengths of 3/23 I.D. tubing and two 3/32" I.D. to 1/8" I.D. nylon adapter fittings.  Adapters included with each P350 Pressure Sensor.

Measurement Resolution *

Range Resolution inch H2O Resolution Pascals
± 0.1 inch H2O 0.00006 0.015
± 0.5 inch H2O 0.0003 0.075
± 1 inch H2O 0.0006 0.15
± 10 inch H2O 0.006 1.5

*Using XR440 set to 12 bit, or XR5-SE.

P350 Pressure Sensors - Available Models

Part No. Range Price
P350-D-0.1-inch ± 0.1 inch H2O $180.
P350-D-0.5-inch ± 0.5 inch H2O $180.
P350-D-1-inch ± 1 inch H2O $180.
P350-D-10-inch ± 10 inch H2O $180.

Use any Pressure Scale

P350 Sensors can be read in any pressure unit (psi, kPa, bar, etc.); see XR440 Pressure Converter or XR5 Pressure Converter.

Differential or Gage Pressure

To read Gage pressure, leave the Low port unconnected (exposed to ambient pressure).

Extension cable

The 18 inch leads on all P350 Pressure Sensors may be extended up to 100 FT (30 meters) by the user using three conductor 22 or 24 gage cable.  In electrically noisy environments we recommend using shielded cable.

Compatible tubing

Commonly available 1/8" I.D. or 3.2 mm I.D. plastic tubing is compatible with the P350 using the included tubing adapter.

Tubing stocked at Pace

Clear 3/32" I.D.  tubing connects directly to all P350, P400, P450 and P500 Sensors.  Temperature range -40°C to 74°C (-40°F to 165°F).  5/32" (4 mm) O.D.  Maximum pressure 43 PSI.  Available in 25 FT (7.6 meter) rolls.

Part Nbr: T-332-25FT  Price: $10.00  25 ft (7.6 meter) roll

All Pressure Ranges

Multi-channel Pressure Data Logging

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