Pressure Sensors

Pressure sensors are devices that sense the applied pressure of gases or liquids. The output of the measurement is then converted into an electrical signal which reflects the amount of pressure applied.

There are various technologies used within pressure sensors. Depending on the requirements, this can influence their sensing accuracy and reliability. When the mechanical displacement within the sensor is turned into an electrical output signal there are 5 ways this can happen.


Resistive - These types of sensors use the change in electrical resistance of a strain gauge connected to the diaphragm.

Capacitive - Are highly sensitive and are able to measure low pressure under 10 bar while still withstanding large overloads.

Piezoelectric - These sensors use substances like Quartz to generate a charge on the surface when pressure is applied. Piezoelectric pressure sensors are ideal for measuring fast changing pressures.

Optical - These use interferometry to measure pressure changes in optical fibre. They are not disturbed by EMI and can be used in noisy or medical environments.


MEMS - This stands for micro-electro-mechanical system and contains capacitive or piezo pressure sensing mechanisms on silicon at micron level resolution.

Types of Pressure Sensors

Within the sensors, there are various properties which can be used to classify them. This includes what pressure range they measure, their operating temperature range or the pressure type they measure.

Absolute Pressure Sensor - This type of sensor measures pressure relative to the perfect vacuum (zero reference point).

Gauge Pressure Sensors - These are often used to measure atmospheric pressure and are sometimes referred to as relative pressure sensors.

Sealed Gauge Pressure Sensor - Like a gauge pressure sensor except they measure pressure relative to a fixed pressure, not the current ambient atmospheric pressure which can vary.

Differential Pressure Sensors - These can be used to measure the difference between two different pressures (differential pressure) which can be connected to either side of the sensor. They are often used to measure pressure drops, fluid levels and flow rates.

Pressure Sensor Applications

Pressure sensors are used in many applications in a large range of industries. These include medical, aviation, automotive and marine.


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รายละเอียดสินค้า / Description ราคา / Price Pressure Reading Type Minimum Pressure Reading Maximum Pressure Reading Accuracy Output Type Media Measured Process Connection Analogue Output Electrical Connection Communication Protocol Response Time Maximum Current Supply Voltage Interface
RS Stock No. 795-4702
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3100B0009V01B000
Brand :Gems Sensors
THB3,975.98
Each
Units
Relative -1bar 9bar ±0.25 % Current Fluid, Gas G1/4 4 → 20 mA DIN 43650 Type A - 1 ms 20 mA 8 → 30 V dc -
RS Stock No. 124-2126
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.9013FSG2J21
Brand :Square D
THB1,229.28
Each
Units
Differential 15 (Approximate) psi, 20 (Rising) psi 30 (Approximate) psi, 65 (Rising) psi ±3 (Repeat) % 2NC Fresh Water 0.25 in NPSF - Screw Clamp - - - - -
RS Stock No. 828-5701
Brand :RS PRO
THB7,554.86
Each
Units
Relative 0bar 50mbar <±0.25 % Voltage Oil, Water G1/4 0.5 → 4.5 V DIN 43650 Type A - - 6 mA 9 → 32 V dc -
RS Stock No. 177-5944
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SCX05DN
Brand :Honeywell
THB7,317.005
Each (In a Box of 25)
Units
Differential 0psi 5psi ±1 % Wheatstone Bridge Pneumatic Fluid - 0 → 60 mV Solder Tag - 100 μs - 20 V dc -
RS Stock No. 774-4104
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SDP610-500Pa
Brand :Sensirion
THB1,396.01
Each
Units
Differential -500Pa 500Pa 3 % I2C Air, Non-Aggressive Gas - - 4 Pin SMD Connector - 4.6 ms 6 mA 2.7 → 3.3 V dc -
RS Stock No. 655-8173
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.26PCCF A2G
Brand :Honeywell
THB1,152.61
Each
Units
Relative 0psi 15psi ±0.5 % Wheatstone Bridge Nitrogen Gas, Oxygen, Water - 100 mV dc PCB - 1 ms - 10 V dc -
RS Stock No. 835-3898
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PT5412
THB4,192.37
Each
Units
Relative 0bar 160bar ±0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA M12 Connector - 1 ms - 8.5 → 36 V dc -
RS Stock No. 795-4752
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3100B0250S05G000
Brand :Gems Sensors
THB5,341.89
Each
Units
Relative 0bar 250bar ±0.25 % Current Fluid, Gas G1/4 4 → 20 mA DIN 43650 Type A - 1 ms 20 mA 8 → 30 V dc -
RS Stock No. 725-5945
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.12719316
Brand :WIKA
THB5,359.51
Each
Units
Relative 0bar 40bar 0.5 % Current Hydraulic Fluid G1/4 4 → 20 mA - - - - 8 → 30 V dc -
RS Stock No. 831-5782
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PX2EN1XX150PSCHX
Brand :Honeywell
THB3,679.98
Each
Units
Relative 0psi 150psi ±0.25 % Current Air, Brake Fluid, Hydraulic Fluid, Oil, Refrigeration Fluid NPT 1/4 4 → 20 mA Wire Lead - <2 ms - 8 → 30 V dc -
RS Stock No. 111-5920
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PX3AN2BS100PAAAX
Brand :Honeywell
THB1,585.60
Each
Units
Absolute 0psi 100psi ±0.25 % Analogue Air, Brake Fluid, Hydraulic Fluid, Oil, Refrigeration Fluid NPT 1/8 0.5 → 4.5 V Metri-Pack 150 - <2 ms 3 mA 4.75 → 5.25 V dc -
RS Stock No. 124-2156
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLR100M1P25
THB12,702.08
Each
Units
Differential 5 (Falling) bar, 8 (Rising) bar 97 (Falling) bar, 100 (Rising) bar ≤0.2 (Repeat) %, ≤0.6 (Output) %, ≤1 (Overall) % Analogue, PNP-NO/NC Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid G1/4 4 → 20 mA M12 4-Pin Connector - ≤10 (Analogue) ms, ≤5 (Discrete) ms ≤50 mA 24 V dc -
RS Stock No. 739-6715
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PK7520
THB7,939.30
Each
Units
Relative 0bar 400bar <±2.5 % 2NO Gas, Liquid G1/4 - M12 Connector - - 500 mA 9.6 → 32 V dc -
RS Stock No. 896-8446
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3500B0006G01E000
Brand :Gems Sensors
THB3,872.97
Each
Units
Relative - 6bar 0.25 % Current Air, Gas, Water G1/4 4 → 20 mA M12 Connector - - - 10 → 30 V dc -
RS Stock No. 609-7088
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMPE12C2131
THB2,191.04
Each
Units
Differential 1.3bar 12bar 3.5 % - Air, Fresh Water, Sea Water G1/4 - PG13.5 Cable Gland - - 1.5 A - -
RS Stock No. 173-2212
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SDP600-025PA
Brand :Sensirion
THB1,014.019
Each (In a Tray of 80)
Units
Differential -25Pa 25Pa 3 % I2C Air, Nitrogen Gas, Oxygen Gas 5.2 mm Tube - - - 4.6 ms <6 mA 3.6 V -
RS Stock No. 125-1269
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PN7092
THB13,760.94
Each
Units
Relative 0bar 100bar ±0.5 % 2x PNP/NPN-NO/NC Fluid G1/4 - M12 Connector IO-LINK <3 (Minimum Switching Output) ms 150 mA @ +60 °C, 200 mA @ +60 °C, 250 mA @ +40 °C 18 → 30 V dc IO-Link
RS Stock No. 124-2165
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMPA06B2133NS1
THB1,476.86
Each
Units
Differential 1bar 6bar ±0.5 % 2 N/C - G1/4 - Screw Terminals - - - - -
RS Stock No. 374-8755
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.787261
Brand :Burkert
THB985.21
Each
Units
Differential 1bar 10bar - Relay Air, Hydraulic Fluid, Oil Emulsion, Water G1/4 - Spade Terminal - - - - -
RS Stock No. 797-5015
Brand :RS PRO
THB5,925.88
Each
Units
Relative 0bar 25bar ±0.25 % Current Air, Gas, Hydraulic Fluid, Liquid, Water G1/4 4 → 20 mA DIN 43650 Type C - - 20 mA 9 → 32 V dc -