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Bosch GPL3T 3-Point Torpedo Laser Alignment Kit

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Product Overview


Providing exceptional accuracy, the Bosch 3-Point Torpedo Alignment Laser is ideal for leveling, plumbing up, and other layout and alignment tasks. With a versatile positioning capability, the GPL3T features a V-groove that aligns unit with pipes, strong magnetic attachment for secure positioning on metal pipes and columns, and a laser reference edge for aligning counter tops and flat surfaces.
  • The patented Diamond-Cut Beam Splitter allows a single diode to project all points for superior accuracy
  • 3-Beams: Plumb, Level, and Square Point Projection accurately transfer and align plumb, level, square, and grade points
  • V-Groove technology aligns the unit with pipes while the bubble vials and laser reference edge keep the tool precise in its measurements
  • Versatile positioning capability thanks to precision bubble vials, leveling base, V-groove, magnets, 1/4 in. x 20 tripod mount, alignment shoulders, positioning tip and strap slots
  • Anodized and machined for superior accuracy and durability
  • Limited 3-year warranty
  • 3-Point Torpedo Laser Alignment Kit - GPL3T
  • Leveling Base
  • Belt Pouch
  • (3) AAA Cell Batteries


Cordless: Yes
Weight: 1.6 lbs.
Accuracy Margin: +/- 1/4 in.
Accuracy Margin Distance: 75 ft.
Battery Type: Alkaline
Effective Range (Visual): 100 ft.
Human Accessible Power Output: <1mW
Laser Color: Red
Laser Diode: 635nm < 1mW
Laser Hazard Class: Hazard Class 2
Operating Temperature (F): 14 - 122 Degrees
Protection Class: IP54
Tripod Thread: 1/4 in. x 20


  • Plumb
  • Transfer
  • Recommendations


    4.4 / 5.0
    49 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    Yes, I would recommend this to a friend (24)
    No, I would not recommend this to a friend (2)
    Lightweight (19)
    Ergonomic Design (16)
    Heavy (1)
    Yes, I would recommend this to a friend
    Super laser torpedo shoots on the level
    I used this for laying out drain tile in the basement, leveling foundation footers and leveling a bathroom floor. I'm sure I will use it for many other things. I like that I was paying just for the level and not a cheap tripod (already have a good one). The construction feels sturdy. On/off switch is a little weird but works fine.
    July 24, 2012
    Yes, I would recommend this to a friend
    Ergonomic Design
    This product is a top coice
    This product fulfills superbly all what is needed.
    Before buying this product I read all the reviews and was thus warned that there is an issue with the ON/OFF switch in the back of the unit. The battery access is a combined screw plug and a spring loaded rotary switch that, when turning the rotary switch, clicks for ON, but there is no click for OFF, thus it easily keeps clicking ON all the time.
    I solved the problem by pulling out the rotary switch slightly and using a small paperclip that is bent into an U-shape inserting it between the battery plug and the switch, and thus secured that when not in use it stays OFF.
    April 12, 2012
    Yes, I would recommend this to a friend
    Works well for shooting grade sticks
    We used the product to establish grade for a patio.
    Cannot be used in full sun, but works fine in overcast or near dusk. Beam dot easily visible at 30+ ft -- probably more but not needed for this project. The magnetic 3 point base is great for establishing level. Only criticism -- it would be nice if the case held the base.
    July 24, 2012
    Yes, I would recommend this to a friend
    Works very well.
    Used the laser level to build a block patio and sidewalk, primarily to determine 90 degree corners and slope to assure water drainage.It is a solid tool, compact,well-designed and easy to use. The leveling bracket works very well. The laser beam is easily visible in bright daylight for at least 75 to 100 feet or more. The only negative I found was the laser beam is above the surface it sits on (1/2 inch above without the leveling bracket, and even higher with it).So the beam hits its target at a similar distance above level.
    September 19, 2012
    Yes, I would recommend this to a friend
    Ergonomic Design
    Great for the price
    Used the laser to level deck, check previous building accuracy. Saves much time and effort.
    June 16, 2011
    Yes, I would recommend this to a friend
    Ergonomic Design
    Exceeded my expections by far
    I have to prepare 9 foundation piers for a barn I am having installed on a sloping and rocky mountainside. This tool will make it so much easier to locate the piers and align all of them.
    July 14, 2011
    Yes, I would recommend this to a friend
    Ergonomic Design
    this is just a fabulous piece of kit. machined from billet and just almost artwork the way its made. the on/off switch is poorly executed but the rest is so good that you don't care... you don't even want to put it in the shop... you just want to leave it on your desk to impress people with how trick it is...but it works brilliantly
    September 17, 2011
    Yes, I would recommend this to a friend
    Ergonomic Design
    So far this product is working as needed
    The laser portion of the product along with the level is what we needed for an alignment application. So far, it is working.
    September 26, 2011
    No, I would not recommend this to a friend
    Ergonomic Design
    Beutifully built tool
    Great, just the job.
    February 28, 2012
    Yes, I would recommend this to a friend
    Ergonomic Design
    It was a great experience
    It was the first time I bought a second hand tool, I'm not a technical person, but one of my contractors who is working at my house construction project advised me to buy this one, I wasn't sure whether a used tool going to be work, however, I ordered one and I was surprised when I received the tool.
    When it comes to its qualities and features, there is a long list all about, it's basically a leveling tool with a laser, so it doesn't allow to make a wrong alignment and one can check and correct a level of wall, a machine, etc. Only one thing I found not good was its batteries, they were too weak, even I could use those batteries only for 4-5 minutes not more than that, but overall I'm delighted with the product I received at such a lower price.
    June 12, 2013

    Questions & Answers

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    Browse 1 question Browse 1 question and 1 answer
    where can i get an off on switch for my Bosch GPL3T?
    Michael on Oct 18, 2014
    BEST ANSWER: Please contact Bosch direct @ 1-877-267-2499 for information on parts.

    New Vs. Reconditioned

    What's the difference between New and Factory-Reconditioned?

    Factory-Reconditioned products have been returned to the manufacturer and are restored to like-new operating condition; they go through a rigorous testing and inspection process. Plus, they offer a significant savings vs. new.
    • Reconditioned products may have minor cosmetic blemishes or scratches that do not affect item performance.
    • Reconditioned products may not come with all of the consumables the new version comes with (bits, sanding pads/papers, cases, etc.).
    • Both come with a manufacturer warranty and are covered by our Money Back Guarantee; New is 30 days, Reconditioned is 60 days.
    Condition: New Factory Reconditioned
    Features: Same Same
    Specs: Same Same
    Includes: 3-Point Torpedo Laser Alignment Kit - GPL3T,
    Leveling Base,
    Belt Pouch,
    (3) AAA Cell Batteries
    3-Point Torpedo Laser Alignment Kit - GPL3T-RT,
    Leveling Base,
    Belt Pouch
    Availability: In Stock Out of Stock
    Warranty: 2 Year Limited 1 Year Limited


    Bosch Laser & Measuring Tools Warranty Robert Bosch Tool Corporation ("Seller") warrants to the original purchaser only, that all Bosch lasers and measuring tools will be free from defects in material or work­manship for a period of one (1) year from date of purchase. Bosch will extend warranty coverage to two (2) years when you register your product within eight (8) weeks after date of purchase. Product registration card must be complete and mailed to Bosch (postmarked within eight weeks after date of purchase), or you may register on-line at

    If you choose not to register your product, a one (1) year limited warranty will apply to your product. 30 Day Money Back Refund or Replacement If you are not completely satisfied with the performance of your laser or optical instrument, for any reason, you can return it to your Bosch dealer within 30 days of the date of purchase for a full refund or replacement. To obtain this 30-Day Refund or Replacement, your return must be accompanied by the original receipt for purchase of the laser or optical instrument product. A maximum of 2 returns per customer will be permitted.