About Rotation Laser PRO GRL 350 HV Bosch
The Bosch GRL 350 HV is a self-levelling rotation laser tool designed for precise horizontal and vertical levelling, alignment and grading on construction sites and large-scale layout work. It projects a 360 rotating laser beam to create high-visibility reference planes that help with excavation, formwork, foundations, and general site grading.
Key Features
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Rotational laser for horizontal & vertical use Ideal for dual-axis levelling tasks.
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Manual dual slope control Enables grade adjustments in two axes for sloping surfaces.
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Variable rotation speed & scan-angle settings Helps optimize visibility in different jobsite lighting.
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Robust build (IP56 rating) Dust- and splash-proof for tough environments.
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Shock warning feature Alerts if the instrument vibrates or is disturbed, helping maintain accuracy.
Performance & Specs
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Working range: up to 60 m without receiver.
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Extended range with receiver: up to 350 m diameter.
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Accuracy: approx. 1.5 mm @ 30 m (horizontal), 3 mm @ 30 m (vertical).
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Self-levelling range: 5 ( 8%).
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Levelling time: 30 s.
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Rotation speeds: 0 / 150 / 300 / 600 rpm.
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Laser wavelength: red, 630650 nm (< 5 mW, Class 3R).
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Power supply: 2 1.5 V LR20 (D) batteries.
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Max operating time: 30 hours on batteries.
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Tripod thread: 5/8 standard.
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Weight: 1.8 kg.
Whats Typically Included
Laser receiver (e.g., LR 30) with holder
Universal mount
Target plate & laser glasses
D-cell batteries
9 V battery
Exceptional Levelling Accuracy and RangeThe GRL 350 HV delivers unmatched precision with an accuracy of 0.05 mm/m, making it ideal for large-scale construction projects. Its automatic self-leveling within 5 degrees ensures quick setup and reliable measurements. Covering distances up to 350 meters with a laser receiver, this tool meets the needs of extensive site layouts.
Built to Withstand Harsh ConditionsEngineered with an IP56-rating, this rotation laser resists both water and dust ingress, ensuring uninterrupted performance even in demanding environments. The sturdy body crafted from high-quality ABS plastic and metal components offers impact resistance, safeguarding internal mechanisms and prolonging product life.
User-Friendly Operation and Versatile PowerCompatible with D cell (alkaline) or NiMH rechargeable batteries, the GRL 350 HV supports flexible power options for long working sessions. The standard tripod mount (5/8") and included insulation box make setup simple and secure. Clear controls and visual guides assist users of all experience levels for maximum efficiency.
FAQ's of Rotation Laser PRO GRL 350 HV Bosch:
Q: How does the Bosch GRL 350 HV achieve self-leveling during setup?
A: The Bosch GRL 350 HV uses an automatic self-leveling mechanism with a 5 range. Once set up, the unit automatically adjusts itself to ensure the laser beam projects accurately, reducing manual calibration and ensuring precisely leveled lines for your work.
Q: What is the primary benefit of using the rotation laser's 350-meter working range?
A: With a working range of up to 350 meters when used with a receiver, the GRL 350 HV is ideal for large construction sites, enabling fast, accurate leveling over extended distances without the need to reposition the device frequently.
Q: In which environments can this laser be used thanks to its IP56 protection rating?
A: The IP56 protection rating means the laser resists dust and splash water, making it suitable for outdoor construction sites, dusty workshops, and even light rain conditions. This robust design enhances reliability and lifespan in challenging settings.
Q: When is it necessary to mount the GRL 350 HV on a tripod?
A: Mounting the GRL 350 HV on a standard 5/8" tripod is necessary when you require stability for extended leveling, alignment, or squaring tasks, especially over long distances or uneven surfaces. The tripod ensures consistent beam height and steady operation.
Q: What type of batteries can power the Bosch GRL 350 HV, and how does this support field use?
A: The device operates on either D cell alkaline or NiMH rechargeable batteries, providing flexibility in remote or varying work environments where direct power sources may not be available, ensuring continuous operation during long shifts.
Q: How do users benefit from the compact and impact-resistant design?
A: The compact form factor allows for easy transport and handling between job sites, while the high-quality ABS and metal construction provides durability against drops and impacts, minimizing downtime caused by accidental damage.