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Hydraulic Instrumentation & Switches

Our range of hydraulic instrumentation and switches covers many applications and includes diagnostic testers and monitors, pressure kits, flow meters and indicators, sensors and alarms, level and temperature gauges, and test point modules.

Providing trusted hydraulic instrument manufacturers such as Parker, WIKA, Elesa-Clayton, SMC, Norgren, Hydrotechnik, and Stauff.

What applications are different types of hydraulic instruments used for?

  • Diagnostic Testers and Monitors for hydraulic systems are in-line sensors for measuring and reporting key values within fluid or oil-based hydraulic systems, such as flow rate, pressure, temperature, and in some cases fluid quality.
  • Digital hydraulic pressure switches are sensors used to track/display fluid pressure levels; they respond to variances in pressure by opening/closing electrical contacts once a certain threshold is reached. They’re often used as automatic feedback and supervisory devices in pressurised fluid systems like hydraulic machine tools, pumps or compressors.
  • Hydraulic circulation sights are installed inline as important maintenance tools in hydraulic fluid systems, giving operators a quick and easy way to perform a manual visual check on fluid/oil levels.
  • Hydraulic column level indicators perform a similar role in a different format, and can often include temperature gauge functions as well.
  • Hydraulic pressure sensors, indicators and displays convert pressure measurements into an analog electrical output signal for easy reference as part of a system monitoring, maintenance and quality assurance setup. Hydraulic pressure sensors are often referred to as transducers, as they read pressure changes as a shift in resistance on their internal electrical circuits, which in turn adjusts the output voltage.
  • Hydraulic test points are leak-proof sealed connecting devices used to monitor and control static and peak system fluid pressure in low- or high-pressure loops. They can be installed inline or connected via hydraulic test point hose, and usually, allow for the venting of air and contamination sampling as part of their role.
Diagnostic Testers & Monitors
Diagnostic Testers & Monitors
Hydraulic Pressure Indicators & Displays
Hydraulic Pressure Indicators & Displays
Hydraulic Pressure Test Kits
Hydraulic Pressure Test Kits
Hydraulic Test Point Hose
Hydraulic Test Point Hose
Hydraulic Test Points
Hydraulic Test Points
Liquid Level Indicators
Liquid Level Indicators

193 Products showing for Hydraulic Instrumentation & Switches

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1 of 10
In Stock
Stauff Hydraulic Pressure Test Kit SMK 3 KIT, 630 bar
  • RS Stock No. 432-5729
  • Mfr. Part No. SMK 3 KIT
Subtotal (1 unit)
£282.59(exc. VAT)
£282.59/unit
In Stock
Stauff Steel Hydraulic Test Point, 1/2" M/F + SMK 20 R 1/8 VC ASS Female/Male, G
  • RS Stock No. 432-5505
  • Mfr. Part No. 1/2" M/F + SMK 20 R 1/8 VC ASS
Subtotal (1 unit)
£14.70(exc. VAT)
£14.70/unit
In Stock
Stauff Zinc, Steel, Nickel Plated Hydraulic Test Point, SMK-20-G1/8-V-C-W3, BSP
  • RS Stock No. 296-366
  • Mfr. Part No. SMK-20-G1/8-V-C-W3
Subtotal (1 unit)
£13.76(exc. VAT)
£13.76/unit
In Stock
Stauff Hydraulic Test Point Hose SMS 20 2000A Threaded Threaded
  • RS Stock No. 432-5634
  • Mfr. Part No. SMS 20 2000A
Subtotal (1 unit)
£26.78(exc. VAT)
£26.78/unit
In Stock
Stauff Hydraulic Test Point Hose SMS 20/M1000A Threaded Threaded
  • RS Stock No. 432-5656
  • Mfr. Part No. SMS 20/M1000A
Subtotal (1 unit)
£25.94(exc. VAT)
£25.94/unit
In Stock
Stauff Level Indicator 1/2 in SNK-127-V-O-O-12, M12
  • RS Stock No. 611-302
  • Mfr. Part No. SNK-127-V-O-O-12
Subtotal (1 unit)
£63.45(exc. VAT)
£63.45/unit
In Stock
Elesa Liquid Level Indicator 11352 M12, M10
  • RS Stock No. 914-9432
  • Mfr. Part No. 11352
Subtotal (1 unit)
£22.36(exc. VAT)
£22.36/unit
In Stock
Stauff Level Indicator 1/2 in SNA-076-B-S-O-12, M12
  • RS Stock No. 611-304
  • Mfr. Part No. SNA-076-B-S-O-12
Subtotal (1 unit)
£11.62(exc. VAT)
£11.62/unit
In Stock
Stauff Steel Hydraulic Test Point, SMK 20 R 1/4 VB Male, G
  • RS Stock No. 432-5375
  • Mfr. Part No. SMK 20 R 1/4 VB
Subtotal (1 unit)
£8.23(exc. VAT)
£8.23/unit
In Stock
Stauff Steel Hydraulic Test Point, 3/8" M/F + SMK 20 R 1/8 VC ASS Female/Male, G
  • RS Stock No. 432-5498
  • Mfr. Part No. 3/8" M/F + SMK 20 R 1/8 VC ASS
Subtotal (1 unit)
£14.41(exc. VAT)
£14.41/unit
In Stock
Stauff Hydraulic Test Point Hose SMS 20/M2000A Threaded Threaded
  • RS Stock No. 432-5662
  • Mfr. Part No. SMS 20/M2000A
Subtotal (1 unit)
£34.10(exc. VAT)
£34.10/unit
In Stock
Stauff Steel Hydraulic Test Point, 1/4" M/F + SMK 20 R 1/8 VC ASS Female/Male, G
  • RS Stock No. 432-5482
  • Mfr. Part No. 1/4" M/F + SMK 20 R 1/8 VC ASS
Subtotal (1 unit)
£19.40(exc. VAT)
£19.40/unit
In Stock
Elesa Liquid Level Indicator 13721 G 1-1/4 in, G 1 in, M20 x 1.5, M27 x 1.5, M30 x 1.5, G 3/4, M26 x 1.5, G 3/8, M35 x
  • RS Stock No. 283-3076
  • Mfr. Part No. 13721
Subtotal (1 pack of 2 units)
£6.85(exc. VAT)
£3.425/unit
In Stock
Elesa Liquid Level Indicator 11361 M12, M10
  • RS Stock No. 283-2988
  • Mfr. Part No. 11361
Subtotal (1 unit)
£45.24(exc. VAT)
£45.24/unit
In Stock
Parker Liquid Level Indicator M12, M10 FL69321
  • RS Stock No. 196-2763
  • Mfr. Part No. FL69321
Subtotal (1 unit)
£65.09(exc. VAT)
£65.09/unit
In Stock
SKF Digital Oil Check Monitor TMEH 1, Series TMEH Oil
  • RS Stock No. 267-0243
  • Mfr. Part No. TMEH 1
Subtotal (1 unit)
£1,082.19(exc. VAT)
£1,082.19/unit
In Stock
Stauff Steel Hydraulic Test Point, 3/4" M/F + SMK 20 R1/8 VC ASSM Female/Male, G
  • RS Stock No. 432-5511
  • Mfr. Part No. 3/4" M/F + SMK 20 R1/8 VC ASSM
Subtotal (1 unit)
£19.53(exc. VAT)
£19.53/unit
In Stock
Elesa Liquid Level Indicator 10901 1/2 in G, G
  • RS Stock No. 287-0148
  • Mfr. Part No. 10901
Subtotal (1 pack of 2 units)
£5.90(exc. VAT)
£2.95/unit
In Stock
Stauff Zinc, Steel, Nickel Plated Hydraulic Test Point, SMK-20-M14x1.5-V-C-W3 Male, Metric
  • RS Stock No. 296-378
  • Mfr. Part No. SMK-20-M14x1.5-V-C-W3
Subtotal (1 unit)
£10.63(exc. VAT)
£10.63/unit
In Stock
Stauff Level Indicator 1/2 in SNA-176-B-S-O-12, NPT
  • RS Stock No. 611-322
  • Mfr. Part No. SNA-176-B-S-O-12
Subtotal (1 unit)
£23.16(exc. VAT)
£23.16/unit
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