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. 176-7870
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLP030BD290
THB4,486.42
Each
Units
- 0bar 30bar ±0.5 (Measurement) %, 0.1 % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid 7/16 - 20 UNF SAE 4 → 20 mA 4 Pin M12 Male Connector - ≤2 ms 23 mA 12 → 24 V dc -
RS Stock No. 896-8474
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3500B0004A01B000
Brand :Gems Sensors
THB4,861.82
Each
Units
Absolute - 4bar 0.25 % Current Air, Gas, Water G1/4 4 → 20 mA DIN 43650 Type C - - - 10 → 30 V dc -
RS Stock No. 613-7710
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.404366/000-464-405-504-20-61/000
Brand :Jumo
THB10,558.71
Each
Units
Relative 0bar 100bar - - Fluid, Gas G1/2 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 424-5774
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.404366/000-463-405-504-20-61/000
Brand :Jumo
THB11,781.43
Each
Units
Relative 0bar 60bar 0.5 % Analogue Fluid, Gas G1/2 4 → 20 mA DIN 43650 Connector - - - 10 → 30 V dc -
RS Stock No. 175-5011
Brand :RS PRO
THB6,619.46
Each
Units
Relative 0bar 0.25bar ±0.25 % Analogue - G1/4 0 → 5 V M12 Connector - - - 9 → 32 V dc -
RS Stock No. 102-4127
Brand :RS PRO
THB7,484.77
Each
Units
Relative 0bar 16bar ±0.25 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 43650 Type A - - - 9 → 32 V dc -
RS Stock No. 197-6899
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MPRLS0030PG0000SA
Brand :Honeywell
THB276.05
Each
Units
Gauge 0psi 30psi ±0.25 %FSS BFSL Transistor Gas, Liquid - - - - - - 3.6 V -
RS Stock No. 176-7914
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLP2K0PD730
THB6,271.83
Each
Units
- 0psi 2000psi ±0.5 (Measurement) %, 0.1 % Analogue Air, Fresh Water, Gas, Hydraulic Oil, Refrigeration Fluid - 0 → 10 V 4 Pin M12 Male Connector - ≤2 ms 7 mA 24 V dc -
RS Stock No. 179-9890
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLK016B2C21
THB3,505.29
Each
Units
Differential - - ±1 % Analogue Fluid G1/4 4 → 20 mA EN 175301-803-A Male Connector - 5 ms 20 mA 24 V dc -
RS Stock No. 879-5059
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.52375455
Brand :WIKA
THB16,181.51
Each
Units
Absolute, Relative 0psi 5000psi 0.25 % Current Synthetic Oil NPT 1/2 4 → 20 mA - - 3 ms 25 mA 8 → 36 V dc -
ใหม่ / New
RS Stock No. 210-2319
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.NPA-730B-001G
THB774.764
Each (On a Reel of 300)
Units
Gauge 1psi 5psi ±1.5 % Digital Gas - - - - - - 3.3 V I2C
RS Stock No. 176-908
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TK-N-1-Z-B04C-M-V 2130X000X00
Brand :Gefran
THB8,379.06
Each
Units
Absolute 0bar 400bar ±0.5 % - Air, Hydraulic Fluid, Oil G1/4 0 → 10 V M12 Connector - 1 ms - 15 → 30 V dc -
RS Stock No. 173-2219
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SDP1000-L05
Brand :Sensirion
THB2,567.626
Each (In a Tray of 25)
Units
Differential -5Pa 125Pa 0.3 %, 2 % Analogue Air, Non-Aggressive Gas - 0.25 → 4 V 3 Pin SMD Connector - 40 ms 5.2 mA 4.75 → 5.25 V -
RS Stock No. 175-4983
Brand :RS PRO
THB5,129.05
Each
Units
Relative 0bar 1bar ±0.25 % Analogue - G1/4 4 → 20 mA M12 4-pin - - 20 mA 9 → 32 V dc -
ใหม่ / New
RS Stock No. 213-3341
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PBT-RB010SG1SSNVMC0Z
Brand :Sick
THB4,688.88
Each
Units
Relative 0bar 10bar <±1 % Voltage Air, Gas, Hydraulic Fluid, Liquid, Oil, Water - 0 - 10 V M12 Connector - <4 ms 8 mA 14 - 30 V -
RS Stock No. 361-3407
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.XMLA070D2S12
THB6,139.94
Each
Units
Differential 50bar 70bar 2 % Relay Hydraulic Fluid G1/4 - M20 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc -
RS Stock No. 124-1469
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.46879358
Brand :WIKA
THB11,001.89
Each
Units
- 0bar 10bar 0.5 % Analogue Gas, Liquid G1/4 4 → 20 mA DIN 175301-803 A - < 2 ms - 10 → 30 V dc -
RS Stock No. 804-3884
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.7MF4033-1BA00-2RB1
Brand :Siemens
THB78,302.56
Each
Units
Relative 0.01bar 1bar - Current Oil G1/2 4 → 20 mA M20 Cable Entry - - 20 mA 9 → 24 V -
RS Stock No. 125-1282
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PN2093
THB16,491.37
Each
Units
Relative -1bar 25bar <±0.4 % Analogue + PNP-NO/NC Programmable Fluid G1/4 0 → 10 V, 4 → 20 mA M12 Connector IO-LINK <1.5 (Minimum Switching Output) ms, <3 (Maximum Analogue Output) ms 250 mA 18 → 30 V dc IO-Link
ใหม่ / New
RS Stock No. 218-9911
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.14071149
Brand :WIKA
THB8,184.24
Each
Units
Gauge 0bar 160bar ± 0.25% Current (2-Wire) - - - - - - - 8 → 35 V -