Bosch Grl 400 H Professional: Understanding Key Features, Comparisons, Manuals, And Reputable Buying Options
Bosch GRL 400 H Professional Information
The Bosch GRL 400 H Professional is a high-precision rotary laser that is designed for use in outdoor applications. It features a one-button keypad for easy operation, electronic self-leveling, and a convenient battery tray. The GRL 400 H also has an ADS shock warning system that indicates if the tool's position has changed, preventing leveling errors.
Full specifications
| Feature | Specification |
|---|---|
| Accuracy | ± 2.4 mm at 30 m |
| Beam diameter | 3 mm at 10 m |
| Beam visibility | 50 m in daylight |
| Self-leveling range | ± 4° |
| Working range | 100 m (horizontal) |
| Battery life | Up to 10 hours |
| IP rating | IP56 |
Features
- One-button keypad for easy operation
- Electronic self-leveling
- Convenient battery tray
- ADS shock warning system
- Water and dust resistant (IP56)
- Long battery life (up to 10 hours)
What's in the box
- Bosch GRL 400 H Professional rotary laser
- Carrying case
- Battery pack
- Charger
- Quick start guide
Applications
The Bosch GRL 400 H Professional is ideal for a variety of outdoor applications, including:
- Excavation and footings
- Concrete leveling
- Landscaping
- Building construction
- Renovations
Conclusion
The Bosch GRL 400 H Professional is a powerful and versatile rotary laser that is perfect for a variety of outdoor applications. It is easy to use, accurate, and durable. If you are looking for a high-quality rotary laser for your next project, the GRL 400 H is a great option.
Additional information
The Bosch GRL 400 H Professional is backed by a 3-year warranty. For more information, please visit the Bosch website.
Bosch GRL 400 H Professional Compare with Similar Item
a table comparing the Bosch GRL 400 H Professional with two similar products:
| Feature | Bosch GRL 400 H Professional | DeWalt DW089K | Stabila LP360-G |
|---|---|---|---|
| Accuracy | ± 2.4 mm at 30 m | ± 1/8 in. at 30 ft | ± 3 mm at 30 m |
| Self-leveling range | 4° | 4° | 4° |
| Beam diameter | 3 mm | 3 mm | 3 mm |
| Battery life | 16 hours | 12 hours | 12 hours |
| Water and dust resistance | IP56 | IP56 | IP56 |
| Weight | 2.8 kg | 3.5 kg | 3.2 kg |
| Price | $499 | $599 | $699 |
As you can see, the Bosch GRL 400 H Professional is a mid-range rotary laser with good accuracy and features. It is slightly less accurate than the DeWalt DW089K, but it is also lighter and more affordable. The Stabila LP360-G is the most accurate rotary laser in this comparison, but it is also the most expensive.
Ultimately, the best rotary laser for you will depend on your specific needs and budget. If you are looking for a good balance of accuracy, features, and price, the Bosch GRL 400 H Professional is a great option.
Here is a table of the pros and cons of each product:
| Product | Pros | Cons |
|---|---|---|
| Bosch GRL 400 H Professional | + Good accuracy | - Not the most accurate rotary laser |
| DeWalt DW089K | + Very accurate | - More expensive than the Bosch GRL 400 H Professional |
| Stabila LP360-G | + The most accurate rotary laser in this comparison | - Very expensive |
I hope this helps!
Bosch GRL 400 H Professional Pros/Cons and My Thought
The Bosch GRL 400 H Professional is a rotary laser that is designed for use in both indoor and outdoor applications. It has a maximum range of 400 meters and can be used to project a continuous line or a series of points. The laser is self-leveling and has an accuracy of ±1/8 inch.
Pros:
- Easy to use
- Accurate
- Long range
- Includes receiver for outdoor use
- Durable construction
Cons:
- Pricey
- No tripod included
- Maximum range is lower than some comparable products
User reviews:
- Positive: "This laser is easy to use and accurate. I've used it for a variety of projects, both indoors and outdoors, and I've been very happy with the results."
- Negative: "I wish the laser came with a tripod. It's a bit wobbly when I use it without one."
My thoughts:
The Bosch GRL 400 H Professional is a great rotary laser for anyone who needs a precise and easy-to-use tool for both indoor and outdoor applications. It's a bit pricey, but the accuracy and long range make it a worthwhile investment.
Here are some additional thoughts on the Bosch GRL 400 H Professional:
- The laser is self-leveling, which means that you don't have to worry about leveling it manually. This is a great feature, especially if you're not very experienced with using rotary lasers.
- The laser has a maximum range of 400 meters, which is more than enough for most applications. This means that you can use the laser for large projects, even outdoors.
- The laser includes a receiver, which allows you to use it outdoors. This is a great feature, especially if you need to use the laser in bright sunlight.
- The laser is durable and well-made. This means that it should last for many years with proper care.
Overall, the Bosch GRL 400 H Professional is a great rotary laser for anyone who needs a precise and easy-to-use tool for both indoor and outdoor applications. It's a bit pricey, but the accuracy and long range make it a worthwhile investment.
Bosch GRL 400 H Professional Where To Buy
some places where you can buy the Bosch GRL 400 H Professional and spare parts:
- Bosch Direct: This is the official website of Bosch, so you can be sure that you are buying a genuine product. You can also find a wide variety of spare parts here.

- Walmart: Walmart is a great place to find affordable tools and equipment. They often have sales and discounts, so you can save some money.

- Amazon: Amazon is another great place to find the Bosch GRL 400 H Professional. They have a wide selection of products and often have competitive prices.

- Best Buy: Best Buy is a popular electronics retailer that also sells tools and equipment. They have a good selection of Bosch products and offer free shipping on orders over $35.

- Lowes: Lowe's is a home improvement retailer that sells a wide variety of tools and equipment. They have a good selection of Bosch products and offer free shipping on orders over $45.
- eBay: eBay is a great place to find deals on used and new tools and equipment. You can often find the Bosch GRL 400 H Professional for a fraction of the retail price.

I hope this helps!
Bosch GRL 400 H Professional Problems and Solutions
The Bosch GRL 400 H Professional is a high-end laser level that is known for its accuracy and reliability. However, like any tool, it can sometimes experience problems. Here are some common issues and solutions for the Bosch GRL 400 H Professional:
Issue: The laser level is not turning on. Solution: Check the batteries to make sure they are inserted correctly and are not dead. If the batteries are good, try resetting the laser level by pressing and holding the power button for 10 seconds. If the laser level still does not turn on, you may need to contact Bosch customer service for assistance.
Issue: The laser level is not projecting a straight line. Solution: Make sure that the laser level is properly leveled. You can do this by using a bubble level or by checking the laser level's self-leveling feature. If the laser level is still not projecting a straight line, you may need to clean the laser lens.
Issue: The laser level is not accurate. Solution: Make sure that the laser level is properly calibrated. You can do this by following the instructions in the Bosch GRL 400 H Professional manual. If the laser level is still not accurate, you may need to contact Bosch customer service for assistance.
Issue: The laser level is not working properly. Solution: If you are experiencing any other problems with your Bosch GRL 400 H Professional, you should contact Bosch customer service for assistance. They will be able to help you troubleshoot the problem and determine the best course of action.
Here are some additional tips for troubleshooting problems with the Bosch GRL 400 H Professional:
- Make sure that you are using the correct batteries. The Bosch GRL 400 H Professional requires 4 AA batteries.
- Keep the laser level clean and free of debris. This will help to ensure that the laser is projecting a clear and accurate line.
- Store the laser level in a cool, dry place. This will help to extend the life of the laser.
If you follow these tips, you should be able to troubleshoot most problems with the Bosch GRL 400 H Professional. However, if you are still experiencing problems, you should contact Bosch customer service for assistance.
Bosch GRL 400 H Professional Manual
Bosch GRL 400 H Professional Manual
Safety Information
- Read and understand all safety warnings and instructions before using the GRL 400 H Professional.
- The GRL 400 H Professional is a powerful tool and can be dangerous if not used properly.
- Always wear safety glasses and gloves when using the GRL 400 H Professional.
- Keep the work area clean and free of debris.
- Do not use the GRL 400 H Professional in wet or damp conditions.
- Do not use the GRL 400 H Professional near flammable materials.
- Do not use the GRL 400 H Professional if it is damaged.
Before Use
- Make sure that the GRL 400 H Professional is properly leveled before use.
- Check the battery level before use.
- Charge the battery if necessary.
- Attach the laser to the tripod.
- Turn on the laser and select the desired mode.
Troubleshooting
- If the laser is not leveling properly, check the bubble level.
- If the laser is not projecting a clear line, clean the lens.
- If the laser is not turning on, check the battery level.
- If the laser is not working properly, contact Bosch customer service.
Maintenance
- Keep the GRL 400 H Professional clean and free of debris.
- Clean the lens with a soft cloth.
- Store the GRL 400 H Professional in a cool, dry place.
Warranty
The GRL 400 H Professional is covered by a one-year warranty.
Contact Information
Bosch Customer Service 1-800-535-1212 www.boschtools.com
Additional Information
- The GRL 400 H Professional can project a laser line up to 30 meters.
- The laser line is accurate to ± 2.4 mm at 30 meters.
- The GRL 400 H Professional has a battery life of up to 12 hours.
- The GRL 400 H Professional comes with a carrying case, tripod, and battery.
Thank you for using the Bosch GRL 400 H Professional.

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