All Instrumentation

RSP Supply offers a full range of reliable industrial instrumentation designed for precise measurement, monitoring, and control in automation, process, and manufacturing environments. Our products ensure accurate, real-time performance in applications that demand safety, consistency, and efficiency.

Precision measurement, monitoring, and control form the foundation of modern industrial operations. At the heart of every process lies a network of intelligent instruments that translate the physical world into actionable digital data. These devices monitor key parameters; such as pressure, flow, temperature, level, and speed, providing critical insights that help maintain smooth and efficient operations. Industrial instrumentation plays a vital role in ensuring accuracy and consistency. From individual sensors to multi-channel controllers, transmitters, and smart assemblies, these devices work together to collect and relay essential process information. Smart instrumentation not only measures and transmits data but also self-monitors its own performance, allowing control systems to make real-time adjustments that improve reliability, safety, and energy efficiency.

Whether you're building a new automation system or upgrading existing controls, RSP Supply provides the high-quality instrumentation solutions you need for dependable performance and accurate data acquisition.

Found 79156 items
Normally In Stock
Dwyer A-297 Dessicant Vent Filter
Free U.S Ground shipping
$39.34
$32.78
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APG RST-3002 Ultrasonic Programming Module and Software
Free U.S Ground shipping
$179.77
$149.81
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Dwyer Mercoid CFS2-CNBPN-20 Mechanical Float Switch
Free U.S Ground shipping
$69.83
$58.19
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Dwyer Mercoid SBLT2-5-40 Submersible Level Transmitter
Free U.S Ground shipping
$690.04
$575.03
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APG KA-M2L Level Float Switch
Free U.S Ground shipping
$244.96
$204.13
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APG LFS-H-10 Miniature Liquid Level Sensor Float Switch
Free U.S Ground shipping
$224.65
$187.21
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Dwyer RMA-26-SSV Air and Gas Flow Meter
Free U.S Ground shipping
$94.72
$78.93
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Dwyer Mercoid SBLT2-10-40 Submersible Level Transmitter
Free U.S Ground shipping
$690.04
$575.03
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Dwyer Mercoid ULT-11 Explosion Proof Ultrasonic Level Transmitter
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$2369.72
$1974.77
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Dwyer 628-10-GH-P1-E1-S1 Pressure Transmitter
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$160.52
$133.77
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ACI 122113 A/CP-PBS 10K Ohm,Type II Thermistor
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$48.06
$40.05
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Dwyer Mercoid SBLT2-15-60 Submersible Level Transmitter
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$779.54
$649.62
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APG KA-1H Level Float Switch
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$181.50
$151.25
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APG FT-100A Level Float Switch
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$78.73
$65.61
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APG FT-100B Level Float Switch
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$78.79
$65.66
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APG FT-100C Level Float Switch
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$97.66
$81.38
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APG KA-M1L Level Float Switch
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$215.36
$179.47
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Dwyer Mercoid PBLT2-5-40-PU Submersible Level Transmitter
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$1092.71
$910.59
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APG KA-M1H Level Float Switch
Free U.S Ground shipping
$161.83
$134.86
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ACI 125584 A/R-PUP Pressure
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$44.93
$37.44
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Dwyer RMB-49-SSV Air and Gas Flow Meter
Free U.S Ground shipping
$119.88
$99.90
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Dwyer RMA-7-SSV Air and Gas Flow Meter
Free U.S Ground shipping
$94.72
$78.93
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Dwyer Mercoid PBLT2-10-40-PU Submersible Level Transmitter
Free U.S Ground shipping
$1092.71
$910.59
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Dwyer Mercoid PBLTX-10-40-PU Submersible Level Transmitter
Free U.S Ground shipping
$1324.15
$1103.46
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Dwyer 628-11-GH-P1-E4-S1 Pressure Transmitter
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$164.12
$136.77
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Dwyer 628-13-GH-P1-E1-S1 Pressure Transmitter
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$160.52
$133.77
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Dwyer Mercoid MPCJR Advanced Duplex Pump Controller
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$942.43
$785.36
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APG KA-M2H Level Float Switch
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$253.34
$211.12
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APG RST-6001 Ultrasonic Programming Module and Software
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$227.86
$189.88
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ACI 125585 A/SP-PUP Pressure
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$39.17
$32.64
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Dwyer LFME-14-F2 Polycarbonate Flowmeter
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$241.72
$201.43
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ACI 122251 A/CP-SP 10K Ohm,Type II Wall Plate Thermistor
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$22.68
$18.90
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ACI 130259 A/10K-E1-PBS 10K Ohm Thermistor
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$46.98
$39.15
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APG KA-1L Level Float Switch
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$187.67
$156.39
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APG FT-100-ACC11 Float Switch Cable Weight
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$25.40
$21.17
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Dwyer Mercoid FBLT-2SC-IVPP-10-40 Submersible Level Transmitter
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$1250.92
$1042.43
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Dwyer RMA-1-SSV Air and Gas Flow Meter
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$94.72
$78.93
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Dwyer RMA-45 Water and Liquid Flow Meter
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$71.39
$59.49
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Dwyer RMC-143-SSV Water and Liquid Flow Meter
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$289.94
$241.62
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ACI 102957 SPT-3.5" Pitot Tube Pressure
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$9.79
$8.16
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Dwyer RMB-55-SSV Air and Gas Flow Meter
Free U.S Ground shipping
$119.88
$99.90
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Dwyer RMC-121-SSV Air and Gas Flow Meter
Free U.S Ground shipping
$289.94
$241.62
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Dwyer RMB-53-SSV Air and Gas Flow Meter
Free U.S Ground shipping
$119.88
$99.90
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Dwyer RMA-2-SSV Air and Gas Flow Meter
Free U.S Ground shipping
$94.72
$78.93
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Dwyer RMA-8-SSV Air and Gas Flow Meter
Free U.S Ground shipping
$94.72
$78.93
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Dwyer Mercoid PBLT2-10-60-PU Submersible Level Transmitter
Free U.S Ground shipping
$1182.22
$985.18
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Dwyer 628-11-GH-P1-E1-S1 Pressure Transmitter
Free U.S Ground shipping
$160.52
$133.77
Normally In Stock
Dwyer Mercoid FSW2-CNPN-20 Mechanical Float Switch
Free U.S Ground shipping
$170.64
$142.20

FAQs

What is industrial instrumentation?

Industrial instrumentation refers to the devices and systems used to measure, monitor, and control physical processes such as flow, pressure, temperature, level, and more.

What types of measurements do instrumentation devices handle?

Instrumentation covers a wide range of variables including flow, pressure, temperature, level, pH, conductivity, vibration, speed, and chemical concentration.

What is the difference between a sensor and a transmitter?

A sensor detects the physical variable, while a transmitter converts that reading into a standardized electrical signal (like 4–20 mA) that a controller or PLC can interpret.

Why is accurate instrumentation important?

Accurate measurements prevent downtime, maintain product quality, improve safety, reduce waste, and help automation systems operate at peak efficiency.

What are the most common communication protocols in instrumentation?

HART, Modbus, Profibus, Foundation Fieldbus, and Ethernet/IP are common protocols used for transmitting measurement data and diagnostics.

Why Buy Industrial Instrumentation from RSP Supply

RSP Supply delivers dependable industrial instrumentation solutions that combine precision, reliability, and smart technology. With a broad selection of products, competitive pricing, and expert technical support, we help customers enhance accuracy, optimize processes, and ensure long-term operational success.