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GEO-LASER LL-91L green plumb laser with GEO-LASER and LEADERS logos

GEO-LASER LL-91L

Short Description

Automatic upward green plumb laser with two-axis electronic self-levelling, 520 nm beam and a working range of up to 500 m. Standard accuracy ±5 mm/100 m. Manufacturer: GEO-LASER. Product code: 999.

Automatic green plumb laser

The GEO-LASER LL-91L establishes an upward vertical reference for construction alignment. Its electronic two-axis levelling system and visible green beam support plumbing tasks in towers and shafts.

Operation and control

Five output settings allow the beam intensity to be adjusted. The illuminated screen shows operating and battery status. Automatic cut-out responds to low battery or sudden movement, and the levelling function can be disabled for alignment against reference points.

Construction and power

A coated metal housing protects the instrument. The rechargeable battery runs for up to 34 hours, with charging completed in up to five hours. Field adjustment is possible without opening the housing.

The specification table describes the standard ±5 mm/100 m version. A higher-precision ±2.5 mm/100 m configuration is a separate manufacturer option; confirm the required configuration when enquiring.

Technical Specifications

Manufacturer
GEO-LASER / GEO Feinmechanik
Manufacturer item number
0001.417.1
Product code
999
Laser colour / wavelength
Green / 520 nm
Laser class / output
3R / < 5 mW
Working range
Up to 500 m
Beam diameter at instrument
13 mm
Self-levelling range
±5%
Permissible deviation (standard)
±5 mm / 100 m
Operating time
Up to 34 hours
Battery
Rechargeable lithium-ion
Charging time
Up to 5 hours
External power supply
11–14 V DC with cable 0117.02
Undervoltage cut-out
Yes
Waterproof depth
3.5 m
Operating temperature
−10°C to +50°C
Weight
3.4 kg

Manufacturer, GEO-LASER / GEO Feinmechanik, Manufacturer item number, 0001.417.1, Product code, 999, Laser colour / wavelength, Green / 520 nm, Laser class / output, 3R / < 5 mW, Working range, Up to 500 m, Beam diameter at instrument, 13 mm, Self-levelling range, ±5%, Permissible deviation (standard), ±5 mm / 100 m, Operating time, Up to 34 hours, Battery, Rechargeable lithium-ion, Charging time, Up to 5 hours, External power supply, 11–14 V DC with cable 0117.02, Undervoltage cut-out, Yes, Waterproof depth, 3.5 m, Operating temperature, −10°C to +50°C, Weight, 3.4 kg

Specifications

Specifications

Specifications