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Bosch GCL Line Laser

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The Bosch GCL Series Combi Lasers combine horizontal/vertical laser lines with plumb points for versatile alignment. Available models include GCL 2-15 G (green, 15m line, IP54, RM 1 mount), GCL 2-50 G (green, 15m line/50m with receiver, IP64, RM 10 mount), GCL 2-50 (red, 15m line/50m with receiver, IP54), GCL 2-50 CG (green, 20m line/50m with receiver, Bluetooth, dual power), GCL 25 (red, 2 lines/5 points), and GCL 2-50 (red, 2 lines/2 points). Models feature self-levelling up to ±4°, pendulum lock for transport, and IP54-IP64 protection. Suitable for electricians, plumbers, carpenters, tilers, and general contractors.
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Description

Table of Contents

Bosch GCL Line Laser

PRIMARY USES

1. Levelling and Alignment for Construction and Renovation
Primary Use: A self-levelling combi laser tool (projecting 2 lines / 2 points) used for horizontal, vertical, and plumb point alignment. Essential for drywall framing, mounting sockets and doors, and point transfer for light mounting.
How it helps: For electricians, plumbers, tilers, and carpenters, the combi laser eliminates the need for manual levelling. Models like the Bosch GCL 2-15 G feature green laser lines for up to four times better visibility than red lines. The GCL 2-50 G provides a working range of lines up to 15 m and points up to 10 m, expandable to 50 m with the optional LR 7 Professional receiver. The GCL 2-50 CG offers Bluetooth connectivity for remote-control adjustment via smartphone and dual power source for lithium-ion or alkaline batteries.
2. Indoor Installation and Fit-Out
Primary Use: Projects reference lines for installing electrical sockets, light fittings, partition walls, suspended ceilings, and doors.
How it helps: The two laser lines allow for precise vertical and horizontal alignment, while red or green plumb points simplify transfer applications for point transfers such as light mountings. The GCL 2-15 G is suitable for short-distance levelling work such as installing shelves and windows, drainage pipe installation, and laying floors. The GCL 2-50 G with RM 10 rotating mount enables precise positioning of laser lines around plumb points for fast and secure mounting.
3. Plumb Point Transfer
Primary Use: Transfers reference points from floor to ceiling or wall to wall using centered plumb points.
How it helps: For lighting installations, partition wall placement, and other tasks requiring vertical point transfer, the top and bottom plumb points provide fast and precise alignment. The GCL 2-50 CG offers red plumb points alongside green laser lines.

SECONDARY USES

1. Drywall Construction: Framing and aligning partition walls with vertical and horizontal reference lines.
2. Fixture Alignment: Ensures sockets, switches, and lights are aligned at consistent heights.
3. Pipe and Duct Installation: Projects reference lines for drainage pipes and ventilation ducts.
4. Suspended Ceiling Installation: Aligns drop-ceiling grids quickly and accurately.
About brand
**Bosch** is a leading German brand founded in **1886**, renowned for its high-quality, innovative, and reliable engineering solutions. In the hardware industry, Bosch is best known for its durable power tools, measuring equipment, and accessories, trusted by professionals and DIY users worldwide. With a strong focus on performance, precision, and innovation, Bosch continues to set the standard for quality in construction, manufacturing, and home improvement.
KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

  • Device Type: Self-levelling combi laser; not a medical device.
  • Designation:
    • Bosch GCL 2-15 (red, 2 lines/2 points, 15m)
    • Bosch GCL 2-15 G (green, 2 lines/2 points, 15m)
    • Bosch GCL 2-50 (red, 2 lines/2 points, 15m/50m with receiver)
    • Bosch GCL 2-50 G (green, 2 lines/2 points, 15m/50m with receiver)
    • Bosch GCL 2-50 CG (green, 2 lines/2 points, 20m/50m with receiver, Bluetooth)
    • Bosch GCL 25 (red, 2 lines/5 points, 10m)
  • Projection: 2 lines (horizontal + vertical) + 2 plumb points (top and bottom) or 5 points
  • Laser Diode: 500-540nm (green) / 630-650nm (red), <1mW to <10mW
  • Laser Class: Class 2
  • Self-Levelling Range: ±4°
  • Levelling Time: 4 seconds
  • IP Rating: IP54 or IP64
  • Country of Origin: China

2. TECHNICAL & PERFORMANCE PROPERTIES

  • Primary Action: Projects self-levelling horizontal and vertical laser lines plus plumb points via pendulum system.
  • Line Range: 10m to 20m (model dependent)
  • Range with Receiver: 50m (GCL 2-50, GCL 2-50 G, GCL 2-50 CG)
  • Point Range: 10m (top and bottom)
  • Accuracy: Laser lines ±0.3mm/m; Plumb points ±0.7mm/m
  • Power Supply: 3-4 x AA batteries; some models support dual power source (Li-Ion or AA)
  • Dust and Splash Protection: IP54 or IP64 for jobsite durability
  • Drop Protection: Rubberised housing for impact resistance
  • Pendulum Lock: Automatic locking when switched off for safe transport and storage
  • Mount Threading: 1/4" and 5/8" for tripod compatibility

3. PHYSICAL & OPERATIONAL PROPERTIES

  • Preparation: Insert batteries. Place tool on a stable surface or mount on tripod/rotating mount. Select output mode.
  • Usage Instructions: Switch on tool; pendulum self-levels within 4 seconds. Select lines, points, or combination using keypad. For outdoor use or long distances, use a laser receiver. The GCL 2-50 CG allows remote control via smartphone app.
  • Rotating Mount: RM 1 Professional (GCL 2-15) or RM 10 Professional (GCL 2-50 G) enables laser lines to be aligned around plumb points.
  • Storage Conditions: Store in a dry, secure place within -20°C to +70°C.
  • Cleaning: Clean housing with soft, dry cloth. Clean laser windows carefully without scratching.
  • Tripod Thread: 1/4" and 5/8" threads for compatibility with various tripods.
  • Dual Power Source (GCL 2-50 CG): Allows use of 12V Li-Ion battery or 4 x AA batteries for increased flexibility.

4. SAFETY & COMPLIANCE ATTRIBUTES

  • Safety Classification: Class 2 laser product (≤1mW or <10mW). Avoid direct eye exposure. Do not point at people or animals.
  • Laser Safety: Complies with IEC 60825-1 standard.
  • Environmental Protection: IP54 to IP64 protection against dust ingress and water splashes/jets.
  • Regulatory: Complies with relevant CE and UKCA standards.
  • Battery Safety: Use only recommended battery types. Do not short-circuit or dispose of in fire.

5. STORAGE & HANDLING ATTRIBUTES

  • Storage: Store in a dry, secure place. Remove batteries if storing for extended periods.
  • Inspection: Regularly inspect device for damage. Check laser windows for cleanliness.
  • Usage: Do not use in explosive atmospheres. Do not use without proper mounting on unstable surfaces.
  • Transport: Pendulum locks automatically when switched off for secure transport.
SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Laser Safety: This device is a Class 2 laser product. Do not stare directly into the laser beam. Do not point the laser at mirrors, reflective surfaces, or into the eyes of people or animals.
Environmental Safety: Do not use the tool in rain or wet conditions (except IP-rated models for splashes/water jets). Avoid extreme temperatures.
Battery Safety: Use only recommended batteries. Do not mix old and new batteries. Remove batteries if device will not be used for long periods.
Operational Safety: Ensure the tool is placed on a stable surface or securely mounted. Self-levelling range is ±4°; if exceeding this range, tool will not self-level.
Maintenance: Clean laser windows regularly with a soft cloth. Do not use aggressive cleaning agents. Have repairs performed only by authorised service centres.
Training requirement: Operators should be familiar with basic laser functions and safety precautions. Supervisors should ensure all safety protocols are followed, particularly regarding laser safety.

2. FIRST AID MEASURES

Eye Exposure (laser beam): If laser beam enters the eye, close eyes and turn head away immediately. If irritation persists, seek medical attention.
Skin Contact: Generally not harmful. If irritation develops, wash with soap and water.
Battery Leakage: Avoid skin contact with battery acid. Wash affected area with soap and water. Seek medical attention if irritation occurs. If acid enters eyes, rinse with plenty of clean water for at least 15 minutes and seek immediate medical attention.
Inhalation: Not applicable for normal use.
Ingestion: Not applicable for normal use.

3. FIRE FIGHTING MEASURES

Flammability: Device housing is not highly flammable but may burn if exposed to fire. Batteries may leak or rupture if exposed to high temperatures.
Extinguishing Media: Use water spray, foam, dry chemical powder, or carbon dioxide (CO₂) for fires involving tools.
Fire Response: In event of fire, evacuate the area and call emergency services. Use appropriate extinguishers. Do not inhale fumes from burning batteries or plastics.

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