Spirit Levels & Inclinometers

Spirit levels also known as bubble levels are invaluable for precision levelling measurement in a multitude of jobs, from something as simple as putting a shelf up to checking how level bricks are in a new wall. This hand held tool is easy to use and a simple way to maintain accuracy on the job. Spirit levels use a liquid filled vial with an air bubble inside. Guides on the vial indicate when the bubble is centred showing the user that it is level. Digital spirit levels also feature a digital readout for extra accuracy and assurance. For best results try to use the longest level that fits on the surface that is being checked on either the horizontal or vertical (plumb) planes.


An inclinometer sometimes known as clinometer is used for measuring the angles of slope or elevation, similar to a spirit level they can use various methods to measure and can be both analogue and digital read outs. Most commonly featuring a gravity-based pendulum others can use a spirit vial. Modern electronic inclinometers can be more precise with the digital measuring systems utilising gyroscopes and are becoming more popular than the classic spirit level due to higher requirements of precision, resolution, reliability, data storage and documenting.


RS Components offer a wide selection including block, box section, bulls eye, straight and torpedo levels.


Characteristics to consider can include:


    Accuracy – shown as a plus (+) or minus (-)

    Bubble size – larger is better for viewing and should always be inside the marked lines. The bubble size is related to which liquid is used, (expands when hot and contacts when cold thus affecting the size).

    Colour – the liquid is coloured to make the bubble easier to see, this colour can fade over time and exposure to the sun

    Lines on the tube or vial – these reading lines should be clear

    Construction – the vial is delicate so care is needed, ideally the ends should be rubber and be sturdy and robust. Aluminium levels are ideal for building sites. Hand holds are also useful.

    Other useful features include a V-groove in the surface which can fit against pipes, or magnets (magnetic base) these magnetic spirit levels allows them to be used ’hands free', convenient for steelwork.

Who uses spirit levels and inclinometers?


    Carpenters

    Stonemasons

    Bricklayers

    Surveyors

Why so some spirit levels have two bubbles?


A dual-vial system means that the two vials on the level work on whether it is lying on either its top or bottom edges.


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Description Price Level Type Length Frame Material Number of Vials Accuracy Waterproof Magnetic Pocket Level Milled Surface Dimensions User Calibrated Height Model Number p Width
RS Stock No. 667-3916
BrandRS PRO
SGD231.08
Each
units
- 175mm - - ±0.2 ° - - - - 175 x 21.4 x 54mm - 54mm - 21.4mm
RS Stock No. 724-3737
Mfr. Part No.0-43-609
BrandStanley
SGD44.36
Each
units
Torpedo 250mm Aluminium 3 ±0.5 mm/m Yes Yes - - - - - 0-43-609 -
RS Stock No. 667-3913
BrandRS PRO
SGD9.74
Each
units
Bulls Eye 25mm - 1 ±2 mm/m - - - - 21.5 (Dia.) x 10mm - 10mm - -
RS Stock No. 785-7897
BrandRS PRO
SGD329.07
Each
units
Precision Shaft Level 150mm - 1 0.02 mm/m - - - - 150 x 40 x 46mm Yes 44mm - 40mm
RS Stock No. 432-536
Mfr. Part No.DZ800
BrandStarrett
SGD8.04
Each
units
Bulls Eye 42mm - 1 - Yes - - - - - - DZ800 -
RS Stock No. 724-3721
Mfr. Part No.0-42-465
BrandStanley
SGD23.61
Each
units
Torpedo 229mm Aluminium 3 ±1 mm/m - Yes - - - - - 0-42-465 -
RS Stock No. 776-9797
Mfr. Part No.0-42-087
BrandStanley
SGD260.37
Each
units
Box Section 400mm Aluminium 2 ±0.1 ° - - - - - - - - -
RS Stock No. 251-7178
Mfr. Part No.T3482
BrandCK
SGD24.65
Each
units
Torpedo 210mm - 3 - - Yes Yes - - - - B2517178 -
RS Stock No. 603-930
Mfr. Part No.DW887
BrandStarrett
SGD446.35
Each
units
- 310mm - - - - - - - - - - DW887 -
RS Stock No. 785-7890
BrandRS PRO
SGD357.36
Each
units
Precision Shaft Level 200mm - 1 0.02 mm/m - - - - 200 x 46 x 46mm Yes 46mm - 46mm
RS Stock No. 724-3844
Mfr. Part No.7804
BrandStabila
SGD8.07
Each
units
Cross Test Level 60mm Plastic 2 - - - - - - - 14mm 7804 45mm
RS Stock No. 304-8960
SGD363.79
Each
units
- 200mm - - ±0.1 mm/m - - - - - - - 1100 200MM -
RS Stock No. 851-3548
BrandRS PRO
SGD8.78
Each
units
- 130mm - - ±0.5 ° - Yes - - 130 x 17 x 110mm - 17mm - 110mm
RS Stock No. 668-3282
Mfr. Part No.17463
BrandStabila
SGD44.41
1 Bag of 10
Bag(s)
- 35mm - - - - - - - 35 x 14 x 22mm - 14 mm, 22mm 17463 -
RS Stock No. 724-3787
Mfr. Part No.DX010
BrandStarrett
SGD54.91
Each
units
Cross Test Level 70mm Cast Iron 2 - No - - - - - - DX010 70mm
RS Stock No. 513-408
Mfr. Part No.16135
BrandStabila
SGD70.68
Each
units
- 430mm - 2 ±0.5 mm/m - - - - - - - 16135-4 -
RS Stock No. 851-3539
BrandRS PRO
SGD3.70
Each
units
Cross Test Level 60mm - 2 - - - Yes - 60 x 13.5 x 45mm - 13.5mm - 45mm
RS Stock No. 724-3771
Mfr. Part No.DX001
BrandStarrett
SGD47.50
Each
units
Pocket 67mm Aluminium - - - - Yes - - - - DX001 -
RS Stock No. 642-1992
Mfr. Part No.Z-340
BrandHozan
SGD25.13
Each
units
Block 75mm - 2 ±2.5 mm/m - - - - - - - Z-340 -
RS Stock No. 776-9829
Mfr. Part No.1-43-553
BrandStanley
SGD32.54
Each
units
I-Beam 600mm Aluminium 3 0.5 mm/m - - - - - - - - -