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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

    182 Products showing for Hydraulic Instrumentation & Switches

    3 of 10
    Stauff Level Indicator SNK-127-V-O-O-12, M12
    • RS Stock No. 611-302
    • Mfr. Part No. SNK-127-V-O-O-12
    Each
    $147.66
    WIKA Hydraulic Pressure Indicator 7082534, 4 → 20mA, L-Plug Connection Type
    • RS Stock No. 297-4852
    • Mfr. Part No. 7082534
    Each
    $280.43
    SKF Digital Oil Check Monitor TMEH 1, Series TMEH Oil
    • RS Stock No. 267-0243
    • Mfr. Part No. TMEH 1
    Each
    $2,760.00
    Elesa Liquid Level Indicator GN.37549, G 1/2
    • RS Stock No. 914-9621
    • Mfr. Part No. GN.37549
    Each
    $38.01
    Stauff Hydraulic Pressure Test Kit SMB-20-3-WOG-W3
    • RS Stock No. 296-452
    • Mfr. Part No. SMB-20-3-WOG-W3
    Each
    $581.36
    Elesa Liquid Level Indicator 11001, G 3/4
    • RS Stock No. 287-0154
    • Mfr. Part No. 11001
    Each (In a Pack of 2)
    $9.89
    Elesa Level Indicator 11349, M10
    • RS Stock No. 268-7569
    • Mfr. Part No. 11349
    Each
    $71.79
    Elesa Liquid Level Indicator GN.37464, G 3/8
    • RS Stock No. 914-9589
    • Mfr. Part No. GN.37464
    Each
    $40.95
    Elesa Liquid Level Indicator 13741, G 1
    • RS Stock No. 283-3082
    • Mfr. Part No. 13741
    Each (In a Pack of 2)
    $11.64
    Stauff Hydraulic Test Point G 1/2 Male and G 1/2 Female, 1/2" M/F + SMK 20 R 1/8 VC ASS
    • RS Stock No. 432-5505
    • Mfr. Part No. 1/2" M/F + SMK 20 R 1/8 VC ASS
    Each
    $22.09
    Elesa Liquid Level Indicator 11355, M12
    • RS Stock No. 914-9441
    • Mfr. Part No. 11355
    Each
    $57.69
    Stauff Hydraulic Test Point G 3/8 Male and G 3/8 Female, 3/8" M/F + SMK 20 R 1/8 VC ASS
    • RS Stock No. 432-5498
    • Mfr. Part No. 3/8" M/F + SMK 20 R 1/8 VC ASS
    Each
    $32.11
    Stauff Hydraulic Test Point, SMK-20-7/16UNF-V-E-W3
    • RS Stock No. 296-357
    • Mfr. Part No. SMK-20-7/16UNF-V-E-W3
    Each
    $25.51
    Elesa Liquid Level Indicator 13742, G 1
    • RS Stock No. 914-9466
    • Mfr. Part No. 13742
    Each
    $9.10
    Elesa Liquid Level Indicator 111031, M12
    • RS Stock No. 914-9555
    • Mfr. Part No. 111031
    Each
    $121.73
    Stauff Hydraulic Test Point M16 x 1.5 Male, SMK-20-08S-B-K-W3
    • RS Stock No. 296-353
    • Mfr. Part No. SMK-20-08S-B-K-W3
    Each
    $47.03
    Elesa Liquid Level Indicator 14463, G 1/2
    • RS Stock No. 283-3105
    • Mfr. Part No. 14463
    Each (In a Pack of 2)
    $14.94
    Elesa Liquid Level Indicator GN.37556, M42
    • RS Stock No. 914-9646
    • Mfr. Part No. GN.37556
    Each
    $79.44
    Elesa Liquid Level Indicator 13651, G 1/4
    • RS Stock No. 283-3032
    • Mfr. Part No. 13651
    Each (In a Pack of 2)
    $5.295
    Stauff Hydraulic Test Point BSP 3/8, SMK-20-G3/8-V-C-W3
    • RS Stock No. 296-367
    • Mfr. Part No. SMK-20-G3/8-V-C-W3
    Each
    $44.48
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