Bosch Professional GLL 3X Line Laser, 15m (49ft) Range, Self Levelling

• Manufacturer: Bosch Professional
• Model: GLL 3X
• Laser Class & Diode: Class 2, 635 nm, < 1 mW (Red Beam)
• Working Range: Up to 15 metres
• Levelling Accuracy: ± 0.5 mm/m
• Self-Levelling Range: ± 4°
• Power Supply: 4 x 1.5 V LR6 (AA) batteries
• Tool Weight: Approximately 0.5 kg

Bosch Professional GLL 3X is a compact, robust 3-line cross-line laser level designed to maximize efficiency and deliver absolute accuracy for indoor alignment jobs. Featuring a front cross-line projection paired with an independent 90° vertical side beam, this tool is ideal for professionals and DIY enthusiasts tackling complex layout tasks.

Built around a smart self-levelling mechanism, the GLL 3X automatically corrects itself to within ±0.5 mm/m accuracy across a ±4° range, cutting setup time down to seconds. A dedicated pendulum locking switch also lets you override the self-levelling function to project steady inclined lines for sloped or angled work — giving it the flexibility to move between everyday squaring tasks and custom layout jobs on the same site.

Technical Specifications

Recommended Applications

This 3-line laser level is strictly recommended for indoor and low-light applications. Because it uses a traditional red diode, beam visibility fades drastically in direct or bright outdoor sunlight.

Why Buy from HomeRun?

1) How do I cycle through the different laser line projection options?

The tool operates via a highly intuitive single-tap selection cycle. Turning it on triggers the front cross-line plus the 90° side vertical beam. A second tap switches to a standalone horizontal line, a third tap triggers a standalone vertical line, and a fourth tap powers the tool down.

2) Can this tool project lines at custom angles for stairs or sloped ceilings?

Yes. The device features a dedicated manual locking switch for the internal pendulum. Engaging this lock prevents the self-levelling function from fighting your movements, allowing you to tilt the entire unit to map out custom sloped angles safely.

3) Is a tripod included in the package, or do I need to purchase one?

The standard retail pack includes the GLL 3X tool, 4 AA replacement batteries, and a soft protective storage pouch — it does not ship with a tripod. It does feature a built-in universal 1/4" tripod thread at the base, so it can be mounted to a standard building tripod or a basic DSLR camera tripod.

4) What batteries does the GLL 3X use, and does it do anything to protect battery life?

It runs on 4 x 1.5 V AA batteries, which are included in the box. To conserve battery life between sessions, the tool automatically powers itself off after 5 minutes of inactivity.

5) Can I use this line laser outside on a bright sunny day?

It is not recommended for outdoor work. The GLL 3X relies on a 635 nm red laser diode optimized for high visibility in indoor job sites and low-light environments. Direct daylight or heavy sunlight outdoors will wash out the red beam, making it very difficult to trace.

1. Return within 24 hours of delivery for:
   • Damaged or defective product
   • Wrong or missing item
2. Product cannot be returned once installed or used
3. Refer to Refund Policy for complete details