Pressure Transducers and Transmitters

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Product Category
OEM Pressure Transducers
Hazardous Area Pressure Transmitters
Differential Pressure Transducers
Submersible Level Sensors
Digital Display Transmitters

Pressure Range
Pressure below 1 PSI
0-1 PSI to 0-15 PSI
0-25 PSI up to 10,000 PSI (with compound ranges)
Greater Than 10,000 PSI
0-15 PSIA to 300 PSIA (absolute)

Output Signal
4-20mA (two wire)
Voltage (0.5-4.5V, 1-5V, 0-10V...)
Millivolt (5mV/V, 10mV/V, 20mV/V)
Frequency (1-6kHz)
Multiple Outputs / Fault Condition

Electrical Connection
Cable or Wires with Conduit Connection

UL/cUL 508
Non-Incendive Class I D2 (Ex nA)
Intrinsically Safe Class I D1 (Exia)
Explosion-Proof Class I D1 (Exd)
Class II Div 1 Explosion-proof
ABS Type Approval
EC 79

0.5% BFSL
0.25% BFSL
0.1% BFSL

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*AST has over 2,000 pressure sensors and transducers it can ship from stock. Submit your configuration and AST can offer the best solution available or browse our sensors in stock online.

Pressure Transducers - UL508 | CE | RoHS

AST4000 industrial pressure sensor product photo
AST4000 industrial OEM pressure transducer
  • Pressures from 0-25 PSI up to 10,000 PSI
  • Latest pressure sensor technology with welded stainless steel housing
  • 1/4" NPT, 7/16-20 UNF, 1/4 BSP and more process connections
  • 4-20mA / 1-5V / 0.5-4.5V ratiometric and more
  • 17-4 PH, 316L, Inconel and Hastelloy sensor materials available

AST4100 low cost / compact pressure sensor product photo
AST4100 low cost / compact pressure sensor
  • Compact pressure sensor with all stainless steel parts
  • Most configurations under $130 in 1-9 pieces
  • Millivolt, 4-20mA, and voltage outputs

AST4200 Panel Mount pressure sensor product photo
AST4200 panel mount pressure sensor
  • Unique process connection allows for direct mounting to panels to eliminate adapters
  • 100V/m EMI/RFI Protection
  • mV, 4-20mA, and voltage outputs

Pressure Transducers / Switches | High Accuracy / High Pressure

Industrial Pressure Transducer product photo - AST2000
AST2000 industrial pressure transducer
  • Excellent Performance Temperature
  • 100V/m of EMI / RFI protection
  • All welded stainless steel housing tested to high pressure washdown and enviromental conditions
  • High shock and vibration
  • Customized packages for higher proof pressure and special electrical connections

AST2000H2 Hydrogen Pressure Sensor product photo
AST2000H2 hydrogen pressure sensor
  • EC79 certified for use on hydrogen powered vehicles
  • Hydrogen permeation and cycling approvals
  • All 316L wetted parts
  • Special process connections for high pressure applications

AST20HA 0.1% Precision Pressure Transducer product photo
AST20HA precision pressure transducers
  • <±0.1% BFSL accuracy
  • Excellent performance over temperature
  • Linearity correction
  • Pressure up to 45,000 PSI
  • Best pricing in the industry

Precision Pressure and Temperature Transmitters / AST20PT
AST20PT precision pressure and temperature transmitter
  • Pressure transducer with temperature output
  • <±0.1% BFSL accuracy
  • Reduces installation time and cost
  • Order from a variety of connector and process connection options

Solid State Stainless Steel Pressure Switch
AST20SW solid state pressure switch
  • No moving parts
  • Pressure transducer reliability with factory set switch points
  • Unmatched performace
  • High cycle life
  • Many sensor materials available

Hydrostatic Submersible Liquid Level Sensors

Intrinsically Safe Submersible Level Sensor - AST4500/4510
AST4500/AST4510 submersible level sensor
  • Submersible pressure transducer for land based liquid level measurement such as water and diesel
  • Designs for marine applications such as ballast tank level (ABS Type Approved)
  • Intrinsically Safe Groups C, D and Zone 0 with approved barrier; ATEX Exia IIB
  • 4-20mA and or low current consumption voltage outputs
  • High performance Hytrel cable

AST4520 Flush Diaphragm Submersible Level Sensor product photo
AST4520 flush diaphragm, non-clogging level sensor
  • Non-clogging pressure transmitter for waste-water and marine applications (ABS Type Approved)
  • Can be externally mounted
  • Pressures 0-2.5 PSI to 30 PSIG
  • Intrinsically safe rated (Groups C, D and Zone 0) with approved barrier; ATEX Exia IIB
  • 316L stainless steel with PVDF cable

PVDF Submersible Pressure Transducer - AST4530
AST4530 PVDF submersible pressure transducer
  • Submersible pressure transducer for liquid level
  • Excellent corrosion resistance with non-metallic wetted parts
  • Will not fail due to foaming or vapors and features a fast response time
  • Cost effective versus radar and ultrasonic
  • Intrinsically Safe / ABS Certified / ATEX Exia IIB

AST45PT liquid level sensors with pressure and temperature output signals
AST45PT liquid level and temperature transmitter
  • Measures pressure / level and temperature
  • 4-20mA Output
  • From 1 PSI to 100 PSIG
  • Only one cable for both measurements
  • Prevent freezing of liquids with temperature measurement

Explosion-Proof / Intrinsically Safe / Non-Incendive Pressure Transmitters

AST4300 Class 1 Div 2 Non-incedive Pressure Transmitter
AST4300 non-incendive pressure transmitter
  • Class I Div 2 Non-Incendive Groups A, B, C, D and Single Seal
  • Pressure measurement from 25 to 20,000 PSI
  • Sensor material: 316L, Hastelloy C276 or Inconel 718
  • Pressure transmitter commonly manufactured for natural gas pressure measurement

AST43LP Class 1 Div 2 Non-incedive Low Pressure Transmitter
AST43LP non-incendive low pressure transmitter
  • Class I Div 2 Non-Incendive Groups A, B, C, D and Single Seal
  • Measure pressure from 0 to 1 PSI to 15 PSI with bi-directional pressures available
  • Cost effective low pressure measurement
  • Voltage or 4-20mA output signals available

Intrinsically Safe Pressure Transmitter - AST4400
AST4400 intrinsically safe pressure sensor
  • Class I Div 1 and Zone 0 Intrinsically Safe Groups C, D with approved barrier ; Single Seal; ATEX Exia IIB
  • Measure Pressure from 0-25 to 20,000 PSI
  • Sensor material: 316L, Hastelloy C276, or Inconel 718
  • Protects systems mechanically with media isolated pressure sensor design

Intrinsically Safe Pressure Transmitter - AST4401
AST4401 intrinsically safe pressure transmitter
  • Class I Div 1 and Zone 0 Intrinsically Safe Groups A, B, C, D with approved barrier; ATEX Exia IIC
  • Measure pressure from 0-25 to 20,000 PSI
  • Sensor material: 316L, Hastelloy C276 or Inconel 718
  • *Maximum Supply Voltage 15.5VDC

AST44LP Class 1 Div 1 Intrinsically Safe Low Pressure Transmitter with Single Seal product photo
AST44LP intrinsically safe low pressure transmitter
  • Class I Div 1 and Zone 0 Intrinsically Safe Groups C, D with approved barrier; ATEX Exia IIB
  • From 0-1 PSI to 15 PSIG / bi-directional available
  • Low cost external tank level monitoring option
  • Sensor material options include 316L and Hastelloy C276

AST4600 Class 1 Div 1 Explosion-Proof / Exd Flame-proof Pressure Transmitter
AST4600 explosion-proof pressure transmitter
  • Class I Zone 1 Group IIC Explosion-proof (ATEX Exd)
  • Class I Div 1 Groups A, B, C, D, Class II Div 1 Groups E, F, G available
  • Low current consumption voltage output
  • ANSI 12.27.01 Single Seal / CRN B31.3 available
  • Pressures from 1 to 20,000 PSI

explosion proof  / flame proof pressure transmitter with local display
AST46DS explosion-proof pressure transmitter with LCD
  • Leading oilfield pressure transmitter with pressures from 1 to 20,000 PSI
  • NEMA 4X salt spray resistant housing
  • Front display shows output or pressure / has re-zero functionality
  • Low current consumption voltage output for battery-powered SCADA systems
  • NACE MR0175 materials / CRN B31.3 available

AST46HA Class I Div 1 Explosion-proof Pressure Transmitter with Single Seal product photo
AST46HA explosion proof pressure transmitter - 0.1% BFSL
  • Class I Zone 1 / Div 1 Group IIC / A, B, C, D Explosion-proof (ATEX Exd)
  • Class II Div 1 Groups E, F, G Dust Ignition-proof
  • The best priced 0.1% Ex pressure transmitter in the industry
  • Highly repeatable and stable readings over temperature

AST46PT Explosion Proof Pressure and Temperature Transmitters in Factory Sealed Configuration
AST46PT explosion proof pressure / temperature transmitter
  • Measure pressure & temperature from a single transmitter
  • Leading sensor technology for accurate, long term stability
  • CRN B31.3 Available
  • Class I Zone 1 Group IIC / Class I Div 1 Groups A, B, C, D Explosion-proof (ATEX Exd)
  • Class II Div 1 Groups E, F, G Dust Ignition-proof

Explosion Proof Pressure Switch - AST46SW
AST46SW explosion proof pressure switch
  • Class I Zone 1 Group IIC (ATEX Exd)
  • Class I Div 1 Groups A, B, C, D Explosion-proof
  • Single pole, double throw with factory set hysteresis
  • 316L, Hastelloy, and Inconel available
  • 1% of line pressure accuracy for less than $400 each

Differential Pressure (DP) Transducers

Differential Pressure Transmitter product photo - AST5100
AST5100 differential pressure transmitter - low pressure
  • Measure differential pressure as low as 5" water column
  • Wet / Wet DP with 4-20mA or 0-5V output signals
  • LVDT pressure sensor technology
  • Excellent for level and emissions monitoring

Differential Pressure Transmitter product photo - AST5300
AST5300 ex wet /wet differential pressure transmitter
  • 1500 PSI line pressure
  • Pressures from 1 to 10 PSID
  • Class I, II & III Division 1 & 2 Available
  • Eliminates 5-way valves
  • Best price-to-performance in the industry

differential pressure transducer - AST5400
AST5400 wet/wet differential pressure transducer
  • High line pressure (up to 5,000 PSI / 350 Bar)
  • Either pressure port can see full pressure without damage
  • Excellent performance over temperature
  • Wet / Wet differential pressure
  • Explosion-Proof and Non-Incendive ratings available

Pressure Transducers - AST4700 Family

AST4700 Frequency and Voltage Output Pressure Transducer product photo
AST4700 frequency and voltage output pressure transducer
  • 0-5V, 0-10V, and 1-6kHz Outputs
  • Variety of NPT, SAE and metric process connections
  • Electrical connections include but are not limited to DIN, M12x1 and PT06A

AST4710 Absolute Pressure Transmitter product photo
AST4710 absolute pressure transmitter
  • 0-15 to 300 PSIA absolute pressure measurements
  • Voltage and 4-20mA Output Signals
  • 316L stainless steel sensor with stainless steel housing

AST47SM  Steel MillPressure Transmitter product photo
AST47SM steel and rolling mill pressure transmitter
  • Leading pressure transmitter for steel and aluminium mill applications
  • 4x Proof Pressure Rating
  • IP69k for Washdown Conditions
  • Pressure Spike Protection

Digital Pressure Gauge

Digital Pressure Gauge - Battery Powered
AG100 digital pressure gauge - 9V battery powered
  • Rugged battery powered digital pressure gauge
  • Large LCD Display
  • Zero calibration, Min/Max, Multiple Units of Measure
  • Excellent for high pressures

Pressure Transducers Applications Contact
Explosion-Proof Transmitters
HVAC/R Pressure Sensors
Hydraulic Pressure Sensors
Hydrogen Pressure Sensors
Liquid Level Sensors
Tank Level Sensors
Water Pressure Sensors
450 Clark Drive
Mount Olive, NJ 07828 USA
(973) 448-1901
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