Easy-Laser® E420

Entry level Shaft to Shaft Laser Alignment - Redefined!

The Easy-Laser® E420 sets a new standard in entry level laser systems for shaft alignment. Wireless measuring units, a large 5.7” colour display and an IP65-rated design that withstands harsh environments. These are the features you would normally only find in more expensive systems! The measuring units are incredibly compact featuring Bluetooth® Wireless technology, an integrated rechargeable battery and large 20 mm TruePSD detectors. This means that they are easy to install on most types of machines, even where there is limited space. The wireless technology gives you full freedom of movement around the machine that is to be aligned. Programs for alignment of both horizontal and vertical machines are included. Added to that are functions for soft foot control, thermal growth compensation and tolerance control. 

E530 Shaft Alignment System


The measurement system is very easy to use. Pre-mounted units make it easy to install on the machine and the programs guide you step-by-step through the process. Start with the measuring units positioned anywhere on the shaft, recording three readings with as little as 20° of rotation between readings. Then adjust the machine with the live values, and save the measurements in the display unit memory. You can also transfer the results to the database EasyLink™ program (included) for PC. Easy-Laser® E420 has everything an entry level system should have, and more. Simply put, Easy-Laser® sets a new standard for measuring solutions. Take the next step into wireless freedom!

E420 Brochure (English) E420 Brochure (French)


  • 2 Measuring units (S and M)
  • 1 Display unit
  • 2 Shaft brackets with chains
  • 2 Extension chains
  • 4 Rods (120 mm)
  • 4 Rods (60 mm)
  • 1 Manual
  • 1 Quick reference manual
  • 1 Measuring tape (3 m)
  • 1 USB Memory stick
  • 1 Charger (100-240V AC)
  • 1 DC charging cable
  • 1 DC to USB adapter
  • 1 CD with documentation
  • 1 Carrying case

+ We offer Training for all Shaft alignment systems in our Machinery Installation & Maintenance Training program.

Easy-Laser® E420 Programs

Horizontal Machines - The measuring units (S and M) are mounted on each side of the coupling with cable or wireless communication to the display unit. Horizontally coupled machines often consist of a pump and motor, but there can also be other types of machine such as a gearboxes and compressors.

Vertical/Flange-Mounted Machines - Alignment of vertical and flange-mounted machines. Shows centre offset, angular error and shim value at each bolt.

Values - The Values program can be used e.g. when one wants to measure with dial gauges and to check bearing play. Can be used wIth the standard equipment and completely normal set up on the machine!

Softfoot Check - Start the alignment work by performing a soft foot check to ensure the machine is resting evenly on all its feet. This is necessary for a reliable alignment. The program shows which foot (feet) should be corrected. After the soft foot check you can go directly to the alignment program with all of the machine’s distances saved.

EasyTurn™ Function - With the EasyTurn™ function you can start measurement anywhere on the turn. Turn the shafts with the measuring units to three positions in any direction with as little as 20° between to register the measurement value and your measurement is complete!

Thermal Growth Compensation - The Thermal Growth Compensation function allows the measurement system to calculate the correct shims and adjustment values when the machines (for example a pump and motor) expand considerably from a cold to a hot state (operating temperature).

Tolerance Check - Checks the offset and angle values towards a selected tolerance. Shows graphically when the alignment is within tolerance.

Measurement Value Filter - Advanced electronic filter function for accurate measurement results, even in bad measuring conditions like air turbulence and vibration.

Live-Any-Angle 360° - Allows adjustment of the machines live with the measuring units positioned anywhere around the shaft. Good for when machine parts prevent normal adjuster positioning.

Three Pairs of Feet / Pair of Feet in Front - The software can handle machine design of all types: two pairs of feet, three pairs of feet, pair of feet before the coupling, etc.

Easy-Laser® E420 Specifications


Relative humidity 10–95%
Weight (complete system) 13.0 lbs [6.3 kg]
Carrying case WxHxD: 500x415x170 mm [19.7”x16.3”x6.7”]

Measuring units M / S

Type of detector True PSD 20 mm [0.78"”]
Wireless communication Class 1 Bluetooth® wireless technology
Operating time > 4 hours
Resolution 0.001 mm [0.05 mils]
Measuring errors ± 1% +1 digit
Measurement range Up to 3 m [10 feet]
Type of laser Diode laser
Laser wavelength 635–670 nm
Laser class Safety class II
Laser output <1 mW
Electronic inclinometer 0.1° resolution
Thermal sensors -20-–60 °C
Environmental protection IP class 65
Temperature range -10–50 °C
Housing material Anodized aluminium / ABS plastics
Dimensions WxHxD: 69x61.5x41.5 mm [2.72"”x2.42”"x1.63"”]
Weight 6.2 oz [176g]

Display unit

Type of display/size VGA 5.7” colour screen, backlit LED
Displayed resolution 0.05 thou / 0.001 mm
Internal battery (fixed) Heavy duty Li Ion chargeable
Operating time Approx. 30 hours (at typical user cycle)
Temperature range -10–50 °C
Connections USB A, Charger
Wireless communication Class I Bluetooth® wireless technology
Internal memory >2000 measurements can be saved
Help functions Calculator, Unit converter
Environmental protection IP class 65
Housing material ABS / PC / TPE
Dimensions WxHxD: 250x175x63 mm [9.8”x6.9”x2.5”]
Weight (without batteries) 910 g [2.0 lbs]


Charging cable Length 1 m [39.4"]

Brackets etc.

Shaft brackets Type: V-fixture for chain, width 0.7” [18 mm].
Shaft diameters: 0.8”–17.7” [20–450 mm]
Material: anodised aluminium
Rods Length: 4.72”, 2.36” [120 mm, 60 mm] (extendable)
Material: Stainless steel

EasyLink™ Database software

System requirements Windows® XP, Vista, 7. For the export functions, Excel
2003 or newer must be installed on the PC.

Easy-Laser® E420 Accessories

Easy-Laser® measurement systems are already extremely flexible in their standard form. By using clever accessories, you can adapt the systems for your own needs, now and in the future as your measurement requirements change. It is cost-effective. We have standardised measurements between the mounting holes in the different parts, and often there are mounting holes on several sides to facilitate mounting on the machine. Experience tells us that this is very much appreciated. A further advantage is that you can use one of the measuring units separately as a detector with, for example, our geometric laser D22. This expands the areas of application of the measurement system. Easy-Laser® is a system that is complete in its full meaning!

Shaft Alignment

Sliding Bracket

Part No.: 12-0039

The spherical feet can be placed in two different for adaptation to small or large shaft diameters. Used when the shaft cannot be rotated. Mounted with standard chains.


Thin Chain Bracket

Part No.: 12-0412

Used when the space between coupling and machine is limited. Width: 12 mm [0.5"].

Notes: Includes thin chains and ti ghtening tool.

Magnetic Bracket

Part No.: 12-0413

For axial mounting on flanges or shafts. With M6 screws working as radial supports, and four super magnets.


Cardan Bracket Set

Part No.: 12-0615

For alignment of flange/offset mounted machines.

Notes: Delivered in plasti c case. For E-series.

Magnet Base

Part No.: 12-0013

For direct attachment to shaft or flange. Versatile magnet base with On/Off function and many optional rod mounting possibilities. (Included in system D505/D525).

Notes: Three sides are magnetic.

Offset Bracket

Part No.: 

Allows axial displacement between measuring units to be able to rotate past projecting machine parts. (Included in system D505/525).



Additional Power Supply with built-in Bluetooth® unit.

Part No.: 12-0618

Chargeable battery pack which gives extra operating time. With battery status indicator and On/Off butt on. Built-in Bluetooth ® unit for wireless measurement data transfer to the display unit.

Notes: Only for the E-series. Includes “red cable” 0.16 m [6.3”].

Additional Power Supply

Part No.: 12-0617

Chargeable battery pack which gives extra operating time. Charging status shown with LED.

Notes: Only for the E-series. Includes “red cable” 0.16 m [6.3”].

Charger 12-36 V

Part No.: 12-0585

To charge the display unit via 12–36 V socket.

Notes: The red adapter can be detached for use with newer (smaller) types of connectors.


Part No.:

Simplifies the rough alignment at very long distance and large alignment fault. Target is mounted on measuring unit or detector.

Sun Protection for PSD

Part No.: 12-0587

To screen against extremely strong ambient light or to use in very sunny conditions when light causes unstable values. With magnetic attachment.



Part No.: 12-0573

Makes it possible to show display unit screen image on a projector, for example, in a training context. 

Notes: The VGA kit (the circuit board) must be ordered at system purchase for factory installati on, it cannot be mounted aft erwards.

Barcode Reader

Part No.: 12-0619

The barcode reader is used to enter the machine data before measurement. At the first measurement of the machine apply the adhesive bar code label. Next time the machine is checked the dimensions are read in directly. Connected in the USB port.

Notes: Includes 25 bar code stickers

Easy-Laser® E420

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