Line level Bosch GLL 3-80 C Professional — range 30 m, accuracy ±0.2 mm/m, self-levelling ±4°, tripod 1/4 & 5/8", battery

Bosch GLL 3-80 C Professional is a compact line level designed for indoor construction and alignment tasks. It projects three visible laser lines for fast layout of verticals, horizontals and cross-lines. The device supports Bluetooth connectivity for remote setup and features a push-button operation, making it suitable for use on job sites and in workshops. With a specified working range of up to 30 m and an accuracy of ±0.2 mm/m, the tool provides precise reference lines for installation, tiling, framing and general alignment work.

Advantages

The line level offers automatic self-levelling within ±4° to reduce manual adjustments and ensure straight references. Visible laser lines in the 630–650 nm range are easy to see under typical indoor lighting. The unit accepts both 1/4" and 5/8" tripod mounts for flexible positioning and stable mounting on standard tripods and adapters. Battery power enables cordless operation and quick on-site use, while a robust housing provides protection against jobsite conditions.

Suitable for

• Interior finishing: installing tiles, skirting boards and cabinetry
• Carpentry: aligning studs, doors and window frames
• Electrical and plumbing: routing conduit and pipes along straight reference lines
• Suspended ceilings and partition walls layout

Key specifications

• Working range: up to 30 m (visible lines)
• Levelling accuracy: ±0.2 mm/m
• Self-levelling range: ±4°
• Laser wavelength: visible red laser (approx. 630–650 nm)
• Tripod compatibility: 1/4" and 5/8" mounting threads
• Power source: battery operation

How to use

Place the Bosch GLL 3-80 C Professional on a flat surface or mount it on a compatible tripod using the 1/4" or 5/8" thread. Switch the device on and allow the automatic self-levelling to complete—if the instrument is outside the self-levelling range it will indicate the condition and require manual adjustment. Use the projected horizontal, vertical or cross lines as reference for measuring, marking and aligning elements. For extended distances up to 30 m verify visibility and consider using contrasting backgrounds or reducing ambient light to improve line clarity.

Usage recommendations

Ensure the working surface is stable before levelling and use appropriate mounting hardware for secure placement. Replace batteries when laser intensity decreases and store the unit in its protective case when not in use to maintain calibration and prolong service life.