Manometers & Pressure Meters

Measure pressure levels accurately using our range of high quality pressure meters and digital manometers. Includes differential pressure measurement tools, portable pressure meters and absolute pressure testers. Read More about Manometers & Pressure Meters
  1. Rothenberger Standard U-Gauge Manometer: 12
    Rothenberger logo
    2 Options in Stock
    Rothenberger Standard U-Gauge Manometer: 12" (30mb) or 24" (60mb)
    (no reviews)
    £12.83 £10.69
    • Scratch-resistant facing
    • Velcro strip for hanging the manometer at eye level for easy reading
    • Magnetic strip for attaching the U-gauge manometer to boiler cabinet casings
    10 Reward Points
    Price Match Guarantee
    RB-67060/4
  2. Monument Gas Test Gauge - 30mb (300mm / 12
    Monument Tools logo
    3 Options in Stock
    Monument Gas Test Gauge - 30mb (300mm / 12"), 60mb (600mm / 24") or 90mb (900mm / 36")
    (no reviews)
    £27.78 £23.15
    • Nitrile hose for LPG
    • Suitable for testing pipework installations and setting gas pressures
    • Available in 30mb (300mm / 12"), 60mb (600mm / 24") & 90mb (900mm / 36")
    23 Reward Points
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    257C/258F/259I
  3. Monument 2579T 30mb 300mm / 12
    Monument Tools logo
    Lead Time: 1-6 Days
    Monument 2579T 30mb 300mm / 12" Gas Test Gauge with Feet & Magnetic Strip & 0.6m Standard Black Hose
    (no reviews)
    £40.40 £33.67
    • Magnetic Strip
    • 0.6m Standard Black Hose
    • Scale adjusts for zeroing water level
    33 Reward Points
    Price Match Guarantee
    MT-2579T
  4. Digitron EM100 Manoflex Water Manometer Gauge – Choice of Range
    Digitron logo
    1 Option in Stock
    Digitron EM100 Manoflex Water Manometer Gauge – Choice of Range
    (no reviews)
    £41.11 £34.26
    • Available in a variety of models with different ranges and scales
    • Constructed from unbreakable, heavy-duty polythene
    • Can be rolled up for ease of carrying
    34 Reward Points
    Price Match Guarantee
    EM100
  5. Sauermann Kimo K-Si-PM3 Manometer
     Sauermann / KIMO logo
    4 In Stock
    Sauermann Kimo K-Si-PM3 Manometer
    (no reviews)
    £68.34 £56.95
    • Backlit LCD screen
    • Magnetic backing for easy fixing
    • Carrying bag
    56 Reward Points
    Price Match Guarantee
    K-Si-PM3
  6. Rothenberger 67069 Professional Air Lock Kit
    Rothenberger logo
    Only 1 In Stock
    Rothenberger 67069 Professional Air Lock Kit
    (no reviews)
    £75.24 £62.70
    • Simple to use
    • Remove airlocks from domestic water and heating pipework
    • Reinforced hose, rubber tap connectors, jubilee clips, male union adapter, and a brass double check valve
    62 Reward Points
    Price Match Guarantee
    RB-67069
  7. TPI SP620 Smart Probe Differential Pressure Meter with A620SP Pouch
    TPI logo
    3 In Stock
    TPI SP620 Smart Probe Differential Pressure Meter with A620SP Pouch
    (no reviews)
    £84.00 £70.00
    • Use with TPI’s SmartProbe App to measure differential pressure
    • Measure pressure between -150mbar and +150 mbar / -60inH2O and +60 inH2O
    • Features a temperature compensation function, and a Trim mode for stabilising fluctuating readings
    70 Reward Points
    Price Match Guarantee
    TPI-SP620
  8. TPI 608 Single Input Digital Manometer
    TPI logo
    Only 1 In Stock
    TPI 608 Single Input Digital Manometer
    (1)
    £93.00 £77.50
    • Measure pressure from one channel
    • 4 digit backlit LCD screen
    • Integrated magnets and hanging hook
    77 Reward Points
    Price Match Guarantee
    TPI-608
  9. TPI SP670 Smart Wireless High Pressure Refrigerant Probe c/w A670SP Pouch - Optional Pair of SP670s
    TPI logo
    TPI SP670 Smart Wireless High Pressure Refrigerant Probe c/w A670SP Pouch - Optional Pair of SP670s
    (no reviews)
    £110.39 £91.99
    • Adjustable Schrader valve depressor
    • Includes A670SP Pouch
    • Measure pressure on refrigeration systems
    • Single or pair of SP670s
    91 Reward Points
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    TPI-SP670-2
  10. Anton AOCK Oil Commissioning Kit
    Anton logo
    3 In Stock
    Anton AOCK Oil Commissioning Kit
    (1)
    £112.80 £94.00
    94 Reward Points
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    AOCK
  11. Testo 510i Bluetooth Differential Pressure Meter Smart Probe
    Testo logo
    3 In Stock
    Testo 510i Bluetooth Differential Pressure Meter Smart Probe
    (1)
    £114.00 £95.00
    • Wirelessly interfaces with your smartphone or tablet in order to log data
    • Measure gas flow and static pressure, plus volume flow
    • Magnetic mount for hands-free use
    95 Reward Points
    Price Match Guarantee
    05601510
  12. TPI 608BT Single Input Digital Manometer in mBar with  Bluetooth Communication
    TPI logo
    Lead Time: 1-6 Days
    TPI 608BT Single Input Digital Manometer in mBar with Bluetooth Communication
    (no reviews)
    £118.80 £99.00
    • +/- 150 mBar range & 0.01 mBar resolution
    • Backlight display
    • Four units of measure
    99 Reward Points
    Price Match Guarantee
    TPI-608BT
  13. Anton APM 135 Differential Manometer
    Anton logo
    In Stock
    Anton APM 135 Differential Manometer
    (no reviews)
    £129.60 £108.00
    • Suitable for all domestic pressure tests
    • Range: -39.99 to +130.0 mbar
    • Min / Max recording function for monitoring pressure drops
    108 Reward Points
    Price Match Guarantee
    APM135
  14. Martindale PM85 Differential Manometer
    Martindale logo
    Only 1 In Stock
    Martindale PM85 Differential Manometer
    (no reviews)
    £131.40 £109.50
    • 8 different pressure measurements units
    • Wide measurement range
    • MAX/MIN/AVG functions
    109 Reward Points
    Price Match Guarantee
    MARPM85
  15. Testo 510 Differential Pressure Meter Kit w/ Hoses
    Testo logo
    In Stock
    Testo 510 Differential Pressure Meter Kit w/ Hoses
    (no reviews)
    £135.00 £112.50
    • Kit version of the Testo 510 with hoses
    • Pressure range from 0 to 100mbar
    • 10 pressure measurement units
    112 Reward Points
    Price Match Guarantee
    05630510
  16. Rothenberger 61130 RP30 Hydrostatic Pressure Testing Pump, 30bar (420psi), 4.5L, R1/2
    Rothenberger logo
    2 In Stock
    Rothenberger 61130 RP30 Hydrostatic Pressure Testing Pump, 30bar (420psi), 4.5L, R1/2" BSPT
    (no reviews)
    £137.99 £114.99
    • Compact design
    • Corrosion- and impact-resistant ABS plastic tank with a reinforced bottom
    • Test hose with a steel mesh prevents measurement errors caused by the hose expanding
    114 Reward Points
    Price Match Guarantee
    RB-61130
  17. Extech HD700 Differential Pressure Manometer (2psi)
    Extech logo
    Lead Time: 1-2 Weeks
    Extech HD700 Differential Pressure Manometer (2psi)
    (no reviews)
    £147.60 £123.00
    • High resolution of 0.001 psi
    • Low range of up to 2 psi
    • Computer software included
    123 Reward Points
    Price Match Guarantee
    HD700
  18. TPI SP620725L-Kit Smart Tightness Test Kit
    TPI logo
    Only 1 In Stock
    TPI SP620725L-Kit Smart Tightness Test Kit
    (no reviews)
    £148.80 £124.00
    • Includes TPI’s SP620 Smart Probe Differential Pressure Meter, 725L Combustible Gas Leak Detector and A900 Carry Case
    • Use the TPI SP620 to measure differential pressures between -150 mbar to +150 mbar / -60 inH2O and +60 inH2O
    • Use the TPI 725L to pinpoint the source of combustible gas leaks  
    124 Reward Points
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    TPI-SP620725L-KIT
  19. TPI 621 Dual Input Digital Manometer
    TPI logo
    Only 1 In Stock
    TPI 621 Dual Input Digital Manometer
    (1)
    £158.40 £132.00
    • Seven pressure measurement units
    • Smoothing function
    • Dual input
    132 Reward Points
    Price Match Guarantee
    TPI-621
  20. Kane 3200 Differential Pressure Meter
    Kane logo
    Only 1 In Stock
    Kane 3200 Differential Pressure Meter
    (3)
    £160.20 £133.50
    • Measures pressure with high accuracy
    • Choose between eight different measurement units
    • Simple two button operation
    133 Reward Points
    Price Match Guarantee
    KANE3200
  21. Rothenberger 67068 Professional Wet & Dry Test Kit, 15 & 22mm Tubes
    Rothenberger logo
    Lead Time: 1-6 Days
    Rothenberger 67068 Professional Wet & Dry Test Kit, 15 & 22mm Tubes
    (no reviews)
    £162.00 £135.00
    • Wet and dry pressure testing
    • Test 15mm and 22mm tubes
    • Test ½” and ¾” BSP threads on copper and plastic tubing
    135 Reward Points
    Price Match Guarantee
    RB-67068
  22. Testo 511 Pocket Absolute Pressure Meter
    Testo logo
    Only 1 In Stock
    Testo 511 Pocket Absolute Pressure Meter
    (no reviews)
    £164.22 £136.85
    • Measurement range of 300 to 1200mbar
    • 8 different measurement units
    • Barometric altitude measurements
    136 Reward Points
    Price Match Guarantee
    5600511
  23. Extech HD750 Differential Pressure Manometer (5psi)
    Extech logo
    2 In Stock
    Extech HD750 Differential Pressure Manometer (5psi)
    (no reviews)
    £166.80 £139.00
    • Low range and high resolution
    • 11 selectable units
    • Computer software included
    139 Reward Points
    Price Match Guarantee
    HD750
  24. Extech HD755 Differential Pressure Manometer (0.5psi)
    Extech logo
    Only 1 In Stock
    Extech HD755 Differential Pressure Manometer (0.5psi)
    (no reviews)
    £166.80 £139.00
    • Low range and high resolution
    • Useful functions included
    • 11 units of measurements to choose from
    139 Reward Points
    Price Match Guarantee
    HD755

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About Manometers & Pressure Meters

At Tester, we stock a wide range of differential manometers and U gauges for measuring the difference in pressure between two atmospheric sources. The most typical use for this is to measure the pressure of gas and air condition systems at close to atmospheric pressures. A correctly calibrated tester can also be used to troubleshoot a whole range of different problems from gas leaks to inconsistent pressures.

Manometers work on typically having a U-shaped tube filled with either mercury or water. The reason that mercury is often used over the more readily available and non-toxic water is that the increased density of mercury allows for a much smaller column to be required and therefore a much smaller tester can be produced.

To operate a manometer both sides of the column are attached to a pressure-producing source, such as a gas outlet. In response to the difference in pressure, the liquid will travel up the column a distance that can be measured to calculate the exact difference in pressure.

Simple U-shaped manometers are often no more complicated than this, with an engineer having to calculate the exact differential pressure between the sources. Most electrical manometers do most of the hard work for you by providing highly accurate readings of the exact difference as well as offering additional features any HVAC engineer may need.

Before commencing work it is very important to make sure that your manometer is suitable for the task at hand. There is a very wide range of different manometers that specialise in testing between different pressure ranges insuring the most accurate results possible.

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