Tuesday, July 3, 2018

Today we are taking a look at the Bosch 30 ft. Self-Leveling Cross Line Laser Level to see what we like, and what could be better (GLL30S)


Model # GLL 30 S

Today we are taking a look at the Bosch 30ft. leveling cross line laser level (Model # GLL 30 S). There have been some mixed reviews on the web in relation to this leveler, so we took a look at some it and wanted to share our view on it.


This Bosch laser level is a Cross-line laser that was designed for an array of level and alignment uses. They included a pendulum system on this model that will help self-level the unit, and will also indicate when it’s out-of-level by blinking every three seconds.

The Bosch GLL 30 S Self-Leveling Cross-Line Laser projects two lines, (vertical/horizontal) making a cross-line projection. Once the lines are projected onto the work surface, The Smart Pendulum System self-levels and indicates out-of-level condition to help ensure an accurate layout and it locks the lines at any angle. The pendulum system locks when switched off, to assure secure tool transport.

This system work perfectly if the level is, Well level, but once you go out of the pendulums corrective boundaries, the lazes start to blink. This means that the self-leveling only works with one direction, vertical.  This tends to get a bit annoying when trying to work on, let’s say backsplash that’s not vertical.


Now that being said, when you do set this up vertical to the work surface, the self-leveling action does work perfectly. The horizontal and vertical line will match up perfectly, and there is no blinking
at all. This makes leveling pictures, tile, shelving, or finding level for anything else on the worksite very fast and easy to do.   

Bosch also includes an  MM 2 Flexible Mounting Device that provides micro fine height adjustment and allows the laser to be clamped on virtually any surface from 1/2 in. to 2-1/4 in. thick, for level lines at any height. This kit includes a belt pouch for easy carry-along accessibility.

As for the laser’s brightness it works perfectly indoors or shaded areas, but if you are planning on using this outside on a bright and sunny day, the lines are going to be a bit hard to see.  The lines also project onto corners and other items that may be hanging on the wall very well, and we had no issue with the line breaking.

As for build, it does have a hard case that will stand up to abuse on the site. It also has a nice grip to it so it won’t fall out of the hands while setting it up, and also comes with a nice storage bag to keep it safe when not in use. Not to mention, it only takes two (2) double AA batteries to power this, so that’s a huge plus.

Other features:
With top-notch accuracy and 1-switch operation, the user's leveling and alignment tasks are done quickly and correctly. The laser lines are visible up to 30 ft.
  • Cross-line mode projects 2 very bright lines that are perfectly level and plumb
  • MM 2 flexible mounting device clamps to multiple surfaces and provides micro fine height adjustment
  • Smart pendulum system self-levels and indicates out-of-level condition
  • Secure transport pendulum locks when switched off
  • Manual mode - tilt the laser to lock and use the lines at any angle
  • Ergonomic, compact and lightweight, easy to use, easy to store
  • Features 1/4 in. 20 tripod thread for use with MM 2 mount, BM 3 magnetic mounting bracket or tripod
  • Belt pouch for convenient transport and easy accessibility
  • Includes: MM 2 flexible mounting device, belt pouch and AA batteries














































All in all, I really am happy with this unit. I wish that it would self-level for horizontal use, and would also like to be able to turn the laser blinking off when not level/plumb. I also with it was a bit brighter during outside use, but other than those few things, very happy with the performance of this leveler.


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